A: Good morning. Can I help you ?
B: Hello. Do you have any nails
A: Certainly. How much do you need ?
B: Fifty, please.
A: Here you have. Anything else?
B: Yes, I need some paint, please.
A: What colour?
B: White.
A: OK, and How many white paint do you need?
B: Six large tins, please.
A: Anything else?
B: No, that’s all, thanks.