C:Yes, I'm looking for a pair of trousers. A:What colour would you like?

C:Black.

A:And what size are you?

C:I'm not sure. Can you measure me?

A:[measures customer] You're a 34 inch waist. How about these?

C:What material are they?

A:Wool.

C:Do you have anything in cotton?

A:Yes, these.

C:Can I try them on?

A:Of course. The fitting room's over there.

C:[tries trousers] They're a little long. Do you have anything shorter?

A:These are shorter.

C:I'll take them.