How to name ktv rooms?

Multi-storey building, the first floor is A, the second floor is B, and the third floor is C. The rooms are A0 1, B 16 and so on.

A single floor is called a city series: Rome Hall, Beijing Hall, Paris Hall, etc.

Or flower series or something: Peony Hall, Narcissus Hall, Clivia Hall or something.

It can also be other series that you are interested in or have your regional characteristics. . . .