ASSISTANT: Can I help you?
RICHARD: Oh, yes, please. I like this sweater, but I'm not sure about the colour. Have you got a blue one?
ASSISTANT: No, sorry, we haven't got any blue ones - only black or brown.
RICHARD: Oh well, the black one's OK. So I'll take it.?
ASSISTANT: It's £36.
RICHARD: I'm not sure if it's the right size for me. It looks too small.
ASSISTANT: What size do you need?
RICHARD: Medium.
ASSISTANT: Yes, that one's too small. This one's medium.
RICHARD: Oh, good. Can I try it on??
ASSISTANT: Yes, sure. The fitting room's over there in the corner.