the origin of this kind of occupation is the waiter who provides catering service in the high-speed train, also known as the dining car attendant.

The high-speed train dining car ride refers to the waiter who provides catering service in the high-speed train, also known as the dining car attendant. They are responsible for providing catering services, health inspection and train information services for passengers. In the high-speed rail dining car, passengers can choose to buy catering products or enjoy the dinner provided by the high-speed rail dining car at some time.