answer: #Person1# asks #Person2# to pay for the key and fill out the form because #Person2# lost it.
documents: #Person1#: Good afternoon, sir.What Can I do for you?
  #Person2#: Well. I can't find my key now. I think I have lost it.
  #Person1#: Really? Have you left it in your room?
  #Person2#: I don't think so. I took it with me when I went out this morning.
  #Person1#: Well, in that case, you have to pay for it. Please fill out the form first.