根据上下文的意思补全对话。在横线上写出所缺少的内容。
A: Hello! 1. Miss Smith?
B: Sorry, she isn't in at the moment. 2.
A: Certainly. That's very kind of you. I want to speak to her about my son. He has a bad cold. I'm afraid
he isn't able to go to school today.
B: I'm sorry to hear that. I hope he'll be all right soon.
A: Thank you. Could I leave my telephone number for you?
B: OK! 3. ! I'll go and get a pen and a piece of paper. OK! 4. ?
A: 3667820. That's my office telephone number. My name is Allan Green.
B: All right. I'll leave the message on her desk. I'll tell her to ring you up.
A: That'll be OK. Thank you very much. Goodbye.
B: 5.