answer: Michael buys two two round-trip tickets to New York for next Saturday with #Person1#'s assistance.
documents: #Person1#: Good morning, sir.
  #Person2#: Good morning. I'd like to buy two tickets to New York, please.
  #Person1#: When do you want to leave, sir?
  #Person2#: Next Saturday.
  #Person1#: Just a moment. Yes, we still have some tickets.
  #Person2#: How much is a round trip ticket?
  #Person1#: Let me see ... 18,168 yuan.
  #Person2#: OK. I'd like two round trip tickets to New York. Here's my credit card.
  #Person1#: Thank you. May I have your name and passport number, sir?
  #Person2#: Michael Smith, passport number: P6363221 and Susan Smith, P6363220.
  #Person1#: Fine, and your phone number, please?
  #Person2#: 95396188.