answer: #Person2# complains that the room is cold so #Person1# will send staff to check.
documents: #Person1#: Room service. What can I do for you?
  #Person2#: This is room 504. The room is so cold.
  #Person1#: Have you turned on the air-conditioner?
  #Person2#: Yes. of course. I turned it on half an hour ago. I don't think it work at all.
  #Person1#: I am sorry, sir. We will send our staff right now.