answer: #Person2# helps #Person1# book the flight to Los Angeles which leaves at 6:30 p.m. and arrives at 8:00 on the 13th as #Person1# requires.
documents: #Person1#: I'd like to book a ticket to Los Angeles.
  #Person2#: What day are you planning to go?
  #Person1#: I am supposed to be there on the morning of the 14th But I'd rather get there on the evening of the 13th.
  #Person2#: What time would you like to leave?
  #Person1#: Late in the afternoon, after work.
  #Person2#: We have a flight at 4:30.
  #Person1#: That's too early. I can't get out of work until five. Do you have a later flight?
  #Person2#: The next flight is at 5:15, and there is another at 6:30.
  #Person1#: I'd better take 6:30. It takes quite a while to get to the airport.
  #Person2#: The flight only takes an hour and a half. It arrives at 8:00. You can have a rest in the evening.