补全对话

A: Excuse me. ?

B: Sorry, I don't know her. ?

A: She isn't tall and she is in a red dress.

B: What class is she in?

A: .

B: Where is she from?

A: .

B: Oh, I see. .

A: Right. Please give the letter to her.

B: OK.

A: Thank you very much.

B: You are welcome.