根据下面对话内容，从A-E五个选项中，选出能填入空白处的最佳答案。

A. I'll be happy to take it.

B. Would you like to leave a message?

C. My phone number is 6085596.

D. May I speak to Mr Peter Brown?

E.  I will put you through right now. 

A: Hello! West Lake Hotel?

B: Yes, this is West Lake Hotel.

A: 1.              

B: Room number, please?

A: Room 316.

B: 2.             

A: All right.

B: I'm sorry. Mr Brown is out at the moment. 3.             

A: Yes, I think I'll have a message for him.

B: OK. 4.             

A: Would you ask Mr Brown to give me a ring later today? 5.             My name's John Smith.

B: All right. No problem.