Is it OK to say: We have decided to book three single rooms in a hotel tomorrow. Do the guests have any choice about the rooms? ( I am writing to my friend who is making arrangement for the guests travel).
Ah, I see. I think 'choices about' is better– I presume that you mean room size, location, amenities, etc? So there would be several possible choices. On the other hand, if you are just thinking about Room A with a double bed vs Room B with twin beds, you might inquire about the choice of rooms.