写一篇关于我和店员买东西对话?用英语

Salesclerk:- Can I help you?Customer:- I would like to buy a coat for my son.S:What size?C:Size 5.S:How about the blue one?C:Oh.I want a green one.S:huh.Let me see.S:The green one.C:well,how much is i...要加上Idon'tlike什么？还要下面的回答~！谢谢Salesclerk:- Can I help you?Customer:- I would like to buy a coat for my son.S: What size?C: Size 5.S: How about the blue one?C: Sorry. I don't like blue. I want a green one.S: huh. Let me see.S: The green one. C: well,how much is it ?S: 20 dollars.C: well,I'll take it .S: Thank you!