What are the two speakers talking about?

W: The air is full of poisonous smoke and people are coughing.
M: It’ll get worse unless the authorities do something about pollution.
W: I can’t agree with you more. It’s the fight time that the government takes some actions.

W: Professor White caught some students cheating on the final exam and failed them right away.
M: Serve them right, I am not sympathetic with anyone trying to pass in that way.
W: I agree with you.