also: セルフ・サービス
self-service
Refers to a system where customers serve themselves, such as in cafeterias, buffets, or gas stations.
このレストランはセルフサービスです。
This restaurant is self-service.
セルフサービス
I refueled at a self-service gas station.
This restaurant is self-service, so you go get your own food.
To cut labor costs, the shop switched to a self-service system.
Please help yourself to drinks.