What should I prepare before calling a restaurant in Japan to confirm a reservation?

Have the restaurant name, the date, time, party size, the reservation name, and the confirmation number or email. Decide on one specific question for the call, and have the written confirmation open so the caller can match each detail the restaurant gives.

What should I do if the restaurant says the booking is not on file?

Ask which name or channel the restaurant sees on its record. Contact the platform, hotel, or friend that made the booking, and have them send the restaurant a confirmation directly. Do not assume the booking is held until the channel that made it confirms in writing.

Does the caller need to be the person named on the reservation?

The restaurant decides this for each booking. Many restaurants only need the reservation name, date, and time to look the booking up, while others will ask the caller to confirm a phone number, an introducer's name, or a course the reservation holder chose. Have the original booking details ready in case the restaurant asks.

What ID or passport information is it OK to share with a Japanese restaurant?

A restaurant does not need a passport number, an image of a passport, or a credit card number to confirm a reservation. Share only the reservation name, date, time, and party size. Complete any deposit, card guarantee, or prepayment through the restaurant's official channel yourself, and never send a card image or passport image to a caller.

What should I do if the restaurant asks for a card guarantee or deposit?

Complete the card guarantee or deposit directly with the restaurant or the platform that took the booking. Ask the restaurant to confirm the amount, the cancellation window before the charge becomes non-refundable, and which card will be held. A caller cannot enter card details on your behalf.

Can MORISTACK confirm a restaurant reservation that does not yet exist?

No. MORISTACK can place a routine call in Japanese to confirm an existing booking, ask the restaurant to note a change, or ask the cancellation and card-guarantee policy. New reservations are made directly with the restaurant, the booking platform, or the hotel concierge.

JAPAN RESTAURANTS

How to Confirm a Restaurant Reservation in Japan

A reservation made online, through a hotel, by an introducer, or on the day itself can leave important details unclear. A short Japanese phone call can confirm whether the booking is on file, what the restaurant expects on arrival, and what happens if you need to change or cancel. This guide helps you match the question to the booking channel, prepare the right details, and decide what to do when the restaurant's answer is not what you expected.

Written by Satoshi Morinaga · Updated August 20, 2026

An empty sushi restaurant counter with wooden wall, Edison bulb lighting, and a SUSHI HOZ ship-illustration sign

Answer at a glance

Treat the call as a confirmation, not a new booking. A Japanese phone call can check whether the reservation is on file, ask the restaurant to note a dietary requirement or a time change, and report the cancellation or card-guarantee policy back to you. It cannot create a new reservation, guarantee a particular counter seat, or replace any deposit or card the restaurant needs from you directly.

CHECK THE WRITTEN CONFIRMATION

Start with the channel that holds the booking

Look at the platform, hotel confirmation, or message thread that created the reservation. The channel that took the booking is usually the fastest one to answer.

HAVE THE DETAILS READY

Match the booking on file exactly

Reservation name, date, time, party size, and confirmation number let staff match the booking on the first try, in any language.

CALL THE RESTAURANT

Use a Japanese speaker for a specific question

A short call can confirm the booking, ask the cancellation policy, note a change, and ask whether a card guarantee is required. It does not make a new reservation.

Match the question to the booking channel

The booking lives in a system, and the system you used to make it is usually the one that can answer the question first. A direct call to the restaurant is the right path when the booking is on the restaurant's own books, or when you do not know which system holds it. Match the question to the channel that originally took the reservation rather than calling the restaurant first by default.

Online platform (TableCheck, Hot Pepper, Omakase, Tabelog): the platform holds the booking record and the cancellation terms; contact its support before calling the restaurant when the platform is the source.
Hotel concierge or front desk: the hotel has the booking on its own record when the concierge made it; ask the hotel first when the concierge was the channel.
Friend, introducer, or third party: the restaurant has the booking under the name the introducer gave, so confirm that name and have the introducer's contact ready when the restaurant needs to verify.
Direct call or walk-in: the restaurant is the only system, so go straight to the restaurant with the date, time, party size, and the name used when the booking was made.

What the restaurant needs to confirm

A Japanese phone call is well suited to a specific question that has a yes-or-no answer: is the booking on file, does the time still hold, is the dietary note received, what is the cancellation window, is there a deposit or card guarantee. It is not the right path for negotiating a private room, holding a counter seat, or arranging something the restaurant has not agreed to in writing. Decide which category your question falls into before calling.

Online platform (TableCheck, Hot Pepper, Omakase, Tabelog)

What a call can check: Whether the booking is on file under your name, the date, time, and party size
What a caller cannot do: Modify or cancel the booking on the platform's behalf, or refund a hold already taken on a card

Hotel concierge or front desk

What a call can check: Whether the concierge has the booking on the hotel's record and what the concierge told the restaurant
What a caller cannot do: Reach a restaurant outside the concierge's network, or override information the concierge gave the restaurant

Friend, introducer, or third party

What a call can check: Whether the name is on the reservation list, and the date, time, and party size the restaurant has on file
What a caller cannot do: Change or cancel the booking on someone else's behalf without the introducer's authorization

Direct call or walk-in to the restaurant

What a call can check: Whether the restaurant has the booking, and the current cancellation, deposit, and card-guarantee policy
What a caller cannot do: Guarantee a particular table, counter seat, course, or time the restaurant has not committed to

Where the booking was made	What a call can check	What a caller cannot do
Online platform (TableCheck, Hot Pepper, Omakase, Tabelog)	Whether the booking is on file under your name, the date, time, and party size	Modify or cancel the booking on the platform's behalf, or refund a hold already taken on a card
Hotel concierge or front desk	Whether the concierge has the booking on the hotel's record and what the concierge told the restaurant	Reach a restaurant outside the concierge's network, or override information the concierge gave the restaurant
Friend, introducer, or third party	Whether the name is on the reservation list, and the date, time, and party size the restaurant has on file	Change or cancel the booking on someone else's behalf without the introducer's authorization
Direct call or walk-in to the restaurant	Whether the restaurant has the booking, and the current cancellation, deposit, and card-guarantee policy	Guarantee a particular table, counter seat, course, or time the restaurant has not committed to

Check the written confirmation first

Before calling, look for the platform email, hotel confirmation, or message thread that created the booking. The Japan National Tourism Organization notes that some online reservation services require confirmation 24 to 48 hours before the scheduled booking, and that deposits, credit card holds, and cancellation terms vary by venue. The written confirmation is the source of truth for the date, time, party size, reservation name, course, and any fee the restaurant or platform will apply. A short call is then used to confirm a current detail, not to relearn the booking.

Copy-and-send message to the restaurant

Use this through the platform's contact form, the restaurant's official email, or the messaging channel shown on its website. Do not include payment-card details, card images, or passport images. Replace the brackets, keep the request to one screen, and add or remove lines to match the booking you need to confirm.

EMAIL / FORM TEMPLATE

Subject: Confirmation request for a reservation on [date]

Hello, I have a reservation at [restaurant name] on [date] at [time] for [number] people. The reservation name is [name], and the confirmation number is [number]. Could you confirm whether the booking is on file, the current cancellation policy, and whether the restaurant needs a card guarantee, deposit, or prepayment to hold the table? If the booking was made through a third party (a booking platform, a hotel concierge, or a friend), please let me know which channel the restaurant sees on its record so I can update my own notes. Thank you.

If the answer is unclear

A clear answer from the restaurant is one the caller can repeat back to you: the date, the time, the party size, the reservation name, the cancellation window, the deposit or card-guarantee terms, and any instruction the restaurant gave. If the restaurant hesitates, asks the caller to call back later, or only says that it will check, treat the booking as not yet confirmed. Ask the caller to follow up the same day, or call back at the time the restaurant suggested, until the answer matches what the written confirmation says.

Vague answer such as "we expect you": ask the caller to repeat the date, time, and party size so the restaurant confirms each one on the call.
Asks to call back: note the time the restaurant suggested, and call back then; do not assume the booking is held in the meantime.
Reservation name does not match: have the caller give the introducer's name and ask which name the restaurant has on file before relying on the booking.
Different time, party size, or course from the written confirmation: ask the restaurant to hold the call while the caller reports the mismatch, and decide which version is correct before hanging up.

If the restaurant cannot confirm

If the restaurant says the booking is not on file, ask whether the reservation was made under a different name or through a platform the restaurant can look up. JNTO notes that some restaurants operate a waitlist at the entrance for walk-ins and do not take reservations at all. When the restaurant has no record of the booking and cannot take a new one in the same call, the next step is to contact the channel that made the reservation directly, and to consider a backup restaurant for the same date and time. A phone call is also the right moment to ask the cancellation policy of the written confirmation you already have, so the same question does not need to be asked again.

JNTO: Get Ahead of the Crowd — making reservations for a seamless trip ↗

What a call can and cannot confirm

The restaurant can tell the caller what it has on record, the current cancellation window, the deposit or card-guarantee policy, and whether a dietary note or time change is acceptable. Its information and final decision apply. A phone call does not replace any card guarantee, deposit, or identity verification the restaurant requires directly from you, and it does not create a new reservation. Complete any payment, deposit, or card detail with the restaurant or platform yourself, and keep the written confirmation alongside the call notes so the date, time, and party size match in both places.

Useful phrases if you call yourself

If you'd rather try the call yourself first, these phrases can help.

I'd like to confirm a reservation.: 予約よやくの確認かくにんを、お願ねがいします。
The name on the reservation is ___.: 予約よやくの名前なまえは、 ___ です。
Is my reservation for [date] at [time] confirmed?: [日付ひづけ]の[時間じかん]の予約よやくは、大丈夫だいじょうぶですか？
Could you check if my reservation is on file?: 予約よやくが、入はいっているか、確認かくにんしてもらえますか？
What is the cancellation policy?: キャンセルの方針ほうしんは、どうなっていますか？
Is there a deposit or card guarantee?: 申込金もうしこみきんやカードでの保証ほしょうは、必要ひつようですか？
Could you note my dietary requirement?: 食事しょくじ】の要望{ようぼうを、伝つたえていただけますか？
I need to change the time. Is that possible?: 時間じかんを変更へんこうしたいのですが、可能かのうですか？

Common questions

What should I prepare before calling a restaurant in Japan to confirm a reservation?: Have the restaurant name, the date, time, party size, the reservation name, and the confirmation number or email. Decide on one specific question for the call, and have the written confirmation open so the caller can match each detail the restaurant gives.
What should I do if the restaurant says the booking is not on file?: Ask which name or channel the restaurant sees on its record. Contact the platform, hotel, or friend that made the booking, and have them send the restaurant a confirmation directly. Do not assume the booking is held until the channel that made it confirms in writing.
Does the caller need to be the person named on the reservation?: The restaurant decides this for each booking. Many restaurants only need the reservation name, date, and time to look the booking up, while others will ask the caller to confirm a phone number, an introducer's name, or a course the reservation holder chose. Have the original booking details ready in case the restaurant asks.
What ID or passport information is it OK to share with a Japanese restaurant?: A restaurant does not need a passport number, an image of a passport, or a credit card number to confirm a reservation. Share only the reservation name, date, time, and party size. Complete any deposit, card guarantee, or prepayment through the restaurant's official channel yourself, and never send a card image or passport image to a caller.
What should I do if the restaurant asks for a card guarantee or deposit?: Complete the card guarantee or deposit directly with the restaurant or the platform that took the booking. Ask the restaurant to confirm the amount, the cancellation window before the charge becomes non-refundable, and which card will be held. A caller cannot enter card details on your behalf.
Can MORISTACK confirm a restaurant reservation that does not yet exist?: No. MORISTACK can place a routine call in Japanese to confirm an existing booking, ask the restaurant to note a change, or ask the cancellation and card-guarantee policy. New reservations are made directly with the restaurant, the booking platform, or the hotel concierge.

Need help with the Japanese call?

Need a Japanese speaker to confirm a restaurant reservation? Request a routine call for $6, charged only after the call is completed.

Request a call

Planning a Japan trip?

MORISTACK also publishes MORISTACK Plan, a set of practical Japan travel guides on hotels, luggage, eSIM, JR passes, and city-office procedures — researched end-to-end, with a map and a written guide you can use yourself.

Browse Japan travel guides →