We have friends who are servers. They told us that when a Guest requests a specific server, they move that server to the Guest. (since the guests table and dining rotations are pre-determined) That means that the server may leave their regular team, and regular rotation to be your server. The CMs said they they enjoy this, not only does it look good for them, but it makes their job even more fun than usual. So they may work with a different server or assistant server for that week, they said that they don't mind.