Formal — to staff
Public · Transport · Etiquette
You
すみません、この電車の中で、お弁当を食べてもいいですか?
すみません、このでんしゃのなかで、おべんとうをたべてもいいですか?
Excuse me, is it okay to eat a bento box on this train?
Romaji: Sumimasen, kono densha no naka de, obentō o tabete mo ī desu ka? / Reply Romaji: Taihen mōshiwake gozaimasen ga, konzatsu suru densha-nai de no inshoku wa goenryo itadaite orimasu.
Reply
大変申し訳ございませんが、混雑する電車内での飲食はご遠慮いただいております。
たいへんもうしわけございませんが、こんざつするでんしゃないでのいんしょくはごえんりょいただいております。
I am very sorry, but we kindly request that you refrain from eating and drinking inside crowded train cars.
Gesture & etiquette
Hold up the bento box (or gesture eating), look around the train, and make a questioning gesture.
Avoid eating strong-smelling food or messy items on local commuter trains, especially during peak hours. Eating is generally acceptable on Shinkansen and long-distance limited express trains.