给下列句子排序，组成一段完整、通顺的对话。

Oh, it's too big for me. Have you got a small one?

Yes. I want to buy a dress. 

    3   Do you like this one? It has got a flower on it. 

OK. It fits(适合) me. I'll take it.

Yes, we have. You can try this blue one. 

Can I help you?