Can I help you, sir?
Yes, please. I'd like to have a pair of shoes.
What size would you like, please?
Size eleven.
OK. What about this pair?
Sorry, I don't like white. Have you got any other colors?
Oh, yes. We have also got blue, brown and black.
Can I have a look at the black ones? Black is my favourite colour.
Sure. Here you are.
They look nice. What's the price?
Fifty dollars.
May I try them on?
Yes, please.
OK. I'll take this pair. Here's the money.