answer: #Person1# asked for the room service an hour ago. #Person2# asks #Person1# to wait another 15 minutes.
documents: #Person1#: Hello. Is this room service?
  #Person2#: Yes. May I help you?
  #Person1#: This is room 1425. We asked for the room service an hour ago.
  #Person2#: We're very sorry to cause you a lot of inconvenience.
  #Person1#: What's the matter?
  #Person2#: We're rather busy right now. It will take another 15 minutes.
  #Person1#: Is it really going to take that long? Will you rush the order?
  #Person2#: I'm afraid it would take 15 minutes at most.
  #Person1#: Ah, well, we have no choice.