A: Can I you ?
B: Yes. I’d like a pair of shoes.
A: color you like ?
B: Green.
A: Sorry. We have any green shoes. Look at these black shoes. They very nice.
B: OK. I like black, too. are they?
A: Four dollars.
B: OK. I’ll them.
A: Here are.
B: Thank you .
A: You are .