answer: #Person1# helps #Person2# book a round-trip ticket to Rome from London. #Person2# wants to leave on Tuesday and return on Saturday but #Person1# suggests staying the Saturday night because it's cheaper. #Person2# agrees and takes the recommended ticket.
documents: #Person1#: Hello, Supertravel. How can I help you?
  #Person2#: I'd like some information about flights to Italy.
  #Person1#: Where do you want to go?
  #Person2#: Rome. I want to leave on Tuesday the 6th of May and come back on Saturday the 10th.
  #Person1#: It'll be much cheaper if you stay the Saturday night and come back on Sunday the 11th.
  #Person2#: OK then, I'll go from the 6th to the 11th. I'd like to fly early in the morning if possible.
  #Person1#: There's a flight leaving London at 8:30 on the 6th, getting to Rome at 12:00, and then for the return flight, there's one leaving at 9:00 getting to London at 12:30. Is that OK?
  #Person2#: Yes, that's fine. Did you say I'll get to Rome at 12:30 on the 6th of May?
  #Person1#: No, at 12:00. You leave at 8:30.
  #Person2#: And the flight back gets in at 12:30 on the 11th?
  #Person1#: That's right.
  #Person2#: How much does it cost?
  #Person1#: 195.
  #Person2#: OK, that's fine. I'd like to book a return ticket for those flights.
  #Person1#: Can I have your name please?
  #Person2#: Yes, Robert Brown.
  #Person1#: And your credit card details.
  #Person2#: Yes, it's a Visa Card...