The hotel system room state diagram turns purple.

Purple stands for: the guest is in the shop.

General hotel front desk system:

Red: Temporary allocation, generally used for booking rooms for guests, or looking at houses, etc.

Purple: The guest is in the shop.

Green: Reservation status.

Yellow: Housekeeping Department is cleaning, not for sale to guests.

In addition, if there is a gray stripe pattern on the top of each room, it means that this room is dirty and cannot be sold to guests.