A:Welcome,may i help you?
B:Yes,I would like to buy a coat.
A:Ok,hou about the red coat?
B:No,I would like a black one.
A:Is this one will be okay?
B:Hmm,let me have a look.ok,how much is it?
A:100 yuan.
B:I will take it,heres the money.thank you.
A:You are welcome.