answer: #Person1# is helping Peter's family check in.
documents: #Person1#: Good evening. Can I help you? 
  #Person2#: Yes, I'd like to check in, pliase. M y name is Peter Wang. I have a reservation for three nights. 
  #Person1#: Just a moment, please. Oh, yes. One twin and one single. Is that right? 
  #Person2#: Yes, I'm with my wife and child. 
  #Person1#: Will you fill out this form, please?