W:Good morning. Can I help you?
M:Yes, please. I'd like to buy a mobile phone.
W:What kind do you like, Motorola, Nokia or TCL?
M:I have no idea. Which kind is sold best?
W:Motorola is more popular. You can buy one if you like.
M:How much is a Motorola?
W:The old type is cheaper and the new type is expensive. You can have this one. It looks nice and works well, and it's not expensive.
M:How much is it?
W:1800 yuan. If you choose a number, you need to pay another 200 yuan.
M:OK. I'll take this one and a lucky number. Thank you for your help.
W:It's a pleasure.