answer: Tom is leaving China. He enjoyed his stay in China and thanks for people's help. #Person1# invites Tom to dinner on Friday.
documents: #Person1#: Hello, Tom! Do you mean you're going away?
  #Person2#: Oh, yes. I've booked the ticket and it's time for me to go back home.
  #Person1#: Well, how long have you been in China?
  #Person2#: I've been here for 2 years.
  #Person1#: Did you enjoy your stay?
  #Person2#: Yes, indeed. I should say I've had a wonderful time over the past 2 years. You and Xiao Fang have given me a lot of help. People here are very friendly. Thank you all very much.
  #Person1#: When are you leaving?
  #Person2#: I'm off next Sunday. I've come to say goodbye today.
  #Person1#: I'd like to invite you to dinner before you go. What about Friday?
  #Person2#: I'm free on Friday. I'd like to come. Would you please ask Xiao Fang to be there too?
  #Person1#: Of course I will.