Can I help you?
I want to buy a hat.
Come here, please.
Is this one fit for you? It is nice.
I don't like the style.
How about this one?
Black is not my favorite colour.
You must like this pink one, don't you?
It's pretty. How much is it?
Fifty yuan.
It's too expensive. Can you come down a little?
How about forty-five?
I'll buy it if forty.
OK.