What was the name of the person who sent meals to dignitaries in ancient times?

In ancient times, people who sent meals to aristocratic bureaucrats and planned and ran for their masters were called diners. The rise of "diners" began in the Spring and Autumn Period and the Warring States Period. The "guest" is attached to the master, who is responsible for "supporting the guest", and there are more than 3,000 people. The "diners" fortune tellers are also attached to a master, and usually take refuge in the homes of princes and nobles, or wander among the literati, predict their future, avoid misfortune, or act as "counselors" or "military advisers". The title of a Korean TV series and movie is also Diner, and there is also a Japanese popular cartoon with the same name.