Assistant: Can I help you?
Customer: I'm looking for a T-shirts. I would like something bright.
A: We've got some T-shirts over here. What color are you looking for?
C: This green one is nice. Can I try it on?
A: Sure. The fitting room is over there. Does it fit?
C: No, it's too big for me. Have you got one in a smaller size?
A: No, I,m afraid not. What about the yellow one?
C: No, O don't like the colour. Yellow doesn't suit me.