予よ約やく番ばん号ごう

noun

reservation number; confirmation number; reference number

Used for booking references for flights, hotels, restaurants, tickets, etc. Often given as a numeric or alphanumeric code.

• 予よ約やく番ばん号ごうをメールでお送おくりしました。

  We have sent your reservation number by email.

• チェックインの際さいに予よ約やく番ばん号ごうが必ひつ要ようです。

  You will need your reservation number when checking in.