随风去

A:  What can I do for you sir?
B:  I'm looking for a jacket for my son.
A:  Come with me please.Here are some jackets for boys.
B:  The black one looks nice.How much is it?
A:  25 pounds.Oh,I'm afraid it's too expensive.
B:  What about the blue one over there,it looks nice too and it's cheaper.
A:  But it's a bit small.Have you a big size?
B:  Sorry,we haven't .but we'll get some soon.Will you come next week?
A:  All right.I'll be here again.