参考答案：Chicago

解析：[听力原文] 1-4
TA: Yes, sir, may I help you
L: Please I’d like a ticket to Chicago.
TA: For today
L: No, early Monday morning.
TA: We have a flight that will put you there at 9 a.m., is that OK
L: Nothing earlier I have an appointment at 8:30.
TA: I’m afraid not, unless you want a night flight.
L: A night flight
TA: Yes, with Northwest Airlines. It will get you there bright and early, at 6:45 a.m. in fact. Is that too early
L: I guess that will be OK. What’s the difference in price
TA: Better price. Night flight is cheaper. One way or round trip
L: One way. Sounds good. I’ll take it. Sixty-two fifty you said
TA: Sixty-three seventy-five with tax. The flight number is 302 at Gate Five, Kennedy Airport.
L: I’ll be there on time.
TA: Thank you, Mr. Li. Check-in time is one hour before take-off. Have a good trip.