通读下面的对话，然后根据上下文补全对话内容。
David: Hello, Office Center.
Susan: Hi, is that you, David? 1___________________
David: Fine, thank you, and you? Susan, I'm so glad that you phoned. How is your study
in London?
Susan: Everything is going on quite well. And how about your teaching?
David: OK. The students are very good. Oh, did I tell you about my trip to London?
Susan: Yes, 2___________________
David: I'm leaving tomorrow afternoon at two.
Susan: 3___________________
David: My flight number is BC 256 and I'll get to the Heathrow airport at four. Susan,
4___________________
Susan: Oh, I'm afraid not. But my friend Tom will go to meet you.
David: Oh, it's good. But I have never seen him before. 5___________________
Susan: He looks very strong and tall. He has thick and brown hair. Well, he'll call you
when you arrive. I'm looking forward to seeing you.
David: Thank you, Susan. I'll see you tomorrow.
Susan: See you.