Dialogue A
　　(A:Miss Li, a secretary of the foreign affairs office;B:Dr. Smith, a visiting professor)
　　A:Good moring!
　　B:Good moring!
　　A:I'm thinking of visiting Beijing during the holidays. I don't need to change planes in Shanghai, do I?
　　B:No, you can fly direct from Hangzhou. Both Air China and Orient Airlines have fligts form Hangzhou to Beijing.
　　A:Do you have the fligts schedule?
　　B:Yes, I've got a timetabe here. Just a second. The Air China flight takes off at 10:55 and gets to Beijing at 1:00 in the afternoon. The Orient Airlines plane takes off at 6:45 in the evening and fets there at 9:00 at night.
　　A:I think I prefer the Air China time. Could you get me a ticket for Wednesday?
　　B:Yes, of coure. I'll fix everything up for you and see you to the airport.
　　A:Good. Thank you very much.
　　B:It's my pleasure.

Dialogue B
　　(A:agent; B:Mr.song)
　　A:United Airlines. Can I helo you?
　　A:Hello, I'd like to reconfirm my fight.
　　B:Yes, it's flight number 313 leaving Beijing at 10:15 in the morning on August 14th.
　　A:Oh, that's our regular flight to San Francisco. What is your name, please?
　　B:Song Guowei.
　　A:Oh, yes,here we are. You'rt flying economy class, is that corrrect?
　　B:Oh, yes. What about the time for departure?
　　A:As scheduled. Please be at the airport at least one hour before departure. Thank you for calling to reconfirm. Bye-bye.

Dialogue C
　　(A:Miss Li, a secretary of the foreign affairs; B: Dr. Smith, a visiting professor)
　　A:Dr. Smith, when do you plan to leave China?
　　B:Next Saturday, the 20th.
　　A:Have you made the air ticket reservation?
　　B:I bought a round-trio air ticket when I came to China. It's an open ticket.
　　A:Which flight are you going to take?
　　B:Northwest Airlines Flight 950.
　　A:Please call the Northwest Airlines Office in Shanghai for reconfirmation there days befor your departure date.
　　B:Oh,yes. I will. But I don't know the telephone number of that office in Shanghai . Would you please check it for me?
　　A:No prpblem.
　　B:Thanks.
　　A:Wait a minute, please. I got it in my notebook. Here it is, the telephonr number is 0531-62798088.
　　B:Thank you so much.