根据对话语境和所给首字母提示，填写正确的单词完成对话
A: Good morning.I'd like to see Mr Brown.
B: Do you have an a 1 ?
A: No,I'm a 2 not.I've just arrived in the town today.
B: Mr Brown is quite busy.I'm afraid he won't be able to see you today.
A: Do you think I can see him t 3 ?
B: Let me see. He's f 4 at 2:30 tomorrow afternoon. Can you come here on t 5 ?
A: Yes,I'll be here at 2:30. Thank you.
B: You are w 6 . Goodbye.
