What do we learn from the man’s reply?

W: Mike, do you still want to buy that large and comfortable apartment you looked last month?
M: I’m afraid I have to change my plan. I haven’t enough cash, and someone has reserved it.
W: Oh, it’s really a pity.

W: Did you read that letter in the newspaper about smoking? The person who wrote that must be crazy.
M: I don’t think so. I think the government should do everything it can to discourage people from smoking.
W: Maybe so. But a law prohibiting cigarettes would do no good.