[解析]
CB
W:Excuse me,I'm looking for the manager.I bought a watch in the shop.But I have some questions about the purchase.
M:I am the manager of the shop.What can I do for you,madam?
W:I bought the watch yesterday.I'm confused that I didn't get the discount that you were advertising.I thought that it would be 25% off!What went wrong,sir?
M:Let me have a look.It was checked out on register four.Heather is in charge of that.She is new here,so she probably didn't know about the sale.I'm sorry about that.I'll fix the problem right away and pay you some cash.
W:Thanks,sir.
M:You are welcome.