根据对话内容，从下面方框中选出恰当的句子补全对话。

A. I don't like green. B. Can I help you? C. Everything is half price. D. What's the price? E. Small. F. What's the matter?

A:

B: Yes, I'd like to buy a coat.

A: What size do you take?

B: A: How about this one?

B: Sorry. Do you have a brown one?

A: Sure, here you are.

B: I like it very much. A: 180 yuan.

B: It's too expensive.

A: There's a sale on today.

B: OK. I'll take it.