-Good morning. Can I help you?
-Yes, can I try those shoes please?
-Yes, of course you can. Do they fit?
-Yes, they do. But I don't like them.
-Oh, well, what about these?
-They're nice. Have you only got them in red?
-No, we've got them in black too.
-Oh, good. Can I try them on in black, please?
-In black? Of course. Well, what do you think? Are they ok?
-Yes. How much are they?
-They're 35$
-35$. Oh, I haven't got 35$ here. Can I buy them this afternoon
-Of course
-Ok, goodbye