That is one of the functions of the stewardess or steward
A steward or a stewardess.
Someone who serves food is called a "waiter" or a "waitress" and sometimes called "staff".
waiter
A horrible person.
One that serves Chinese food.
maintain homeostasis
Their food.
food technologists
A Foodie. A Foodie.
A teenager
a poor person maybe......
lunch lady or cafeteria lady