M--Michael S--售货员
S:Can I help you?
M:I would like a pair of trousers.
S:Please in this way.Which colour would you like best?
M:I like blue.
S:Look at these trousers.
M:Oh,It is so beautiful.
S:I think it fit you very much.
M:Yes,it very fit me.How much?
S:Fifty-five yuan.
M:Oh,sorry!I can't afford it.
How about Fifty yuan.
S:OK!
M:Here is money.
S:Thank you!
好累啊!这么晚了...