Where does the conversation take place?

W: Room service．Can I help you?
M: Yes．I’d like a dinner for two．And would you please send it to the room?
W: Sure．Your room number, please?
M: Room 5003．
W: Ok．We’ll get it ready in ten minutes．
M: Thanks．By the way, was my room cleaned this morning?
W: Yes．We clean all the rooms in the morning. Is there anything wrong?
M: No．not really．Just that my wife can’t find her watch anywhere．
W: Just a minute．I’ll go up and check it.