What are the speakers probably going to do?

A: I’m really getting worried about Mary. She was sitting in for the exam in two weeks’ time. But all she is talking about now is nothing but an upcoming concert.
B: She may fail along that line. Let’s try to talk some sense into her.

A: I’m not really an expert on precious stones, but these are superb. Don’t you like them?
B: Have you looked at the price tag? It costs almost twice as much as a house where we are living in.