Formal — to staff
Lost · and · Found · Train
You
すみません、電車の中に傘を忘れてしまったのですが、落とし物センターはこちらですか？
すみません、でんしゃのなかにかさをわすれてしまったのですが、おとしものセンターはこちらですか？
Excuse me, I left my umbrella on the train. Is the lost and found center here?
Romaji: Sumimasen, densha no naka ni kasa o wasurete shimatta no desu ga, otoshimono sentā wa kochira desu ka? / Reply Romaji: Hai, kochira de uketamawatte orimasu. Dono yō na densha de, itsugoro dochira kara dochira made go-riyō deshita ka?
Reply
はい、こちらで承っております。どのような電車で、いつ頃どちらからどちらまでご利用でしたか？
はい、こちらでうけたまわっております。どのようなでんしゃで、いつごろどちらからどちらまでごりようでしたか？
Yes, we handle inquiries here. What kind of train, approximately when, and from where to where did you use it?
Gesture & etiquette
Look slightly distressed, but maintain a polite demeanor. You can subtly gesture behind you as if recalling the train.
Have as many details as possible ready: train line name, approximate time of travel, departure station, arrival station, and a detailed description of the lost item (color, brand, distinguishing features). Be prepared to fill out a form if required.