A: How much do you want for it?

B: 45 dollars

A: Forty-five dollars? It is too much. But it is not in very good condition. Look, it is broken here. I don't think it is worth 45 dollars. I will give 25 dollars.

B: Twenty-five dollars? I’ll tell you what. This is a real Chinese vase(花瓶). You can have it for 40 dollars.

A: No, that is still too much. To tell you the truth, I can't afford 40 dollars.

B: I’ m sorry. That is my last word.

A: Let's split the difference（折中） 30 dollars.

B: Thirty-five. No less.

A: Ok, I'll take it.