【正确答案】
B
【答案解析】[听力原文]
W: Hello, this is New York Air-ticket Booking Office. What can I do for you?
M: I want to book two round-trip tickets to Tokyo on the afternoon of the fifteenth.
W: Wait a minute, let me check. There are three flights in all. They are 1:30 flight, 3:45 flight and 5:00 flight.
M: 1:30 is too early. I will take the 3: 45 flight. Is there any ticket left for the flight?
W: Yes, there are.
M: How much does it cost?
W: It costs 450 dollars. I will be glad to send it to you as soon as possible if you leave your address.
M: That's very kind of you.
W: You are welcome.