What is the conversation mainly about?

W: Excuse me, Robert. Karen just called from the convention center. She can’t find the brochures she’s supposed to hand out this afternoon.
M: Oh, I nearly forgot about that! I never had a chance to tell her that the printers called this morning to say they would be held up for a couple of hours.
W: OK, I see. I’lI let her know so she doesn’t worry about it. Will you be attending the convention later?
M: Yes. But first I need to finish the presentation I’m working on.