What is the main topic of the conversation?

M: You’re probably wondering why I asked you to come to see me.
W: Yes, I am. I have been a little worried about it all morning.
M: Oh, I should have told you more when I saw you after class; but there were so many students waiting to ask questions. Jean, I wanted to tell you that I have nominated you for the outstanding student award.
W: Really?
M: You are clearly the best student in my class, and, as I understand, in the rest of your classes as well. I have talked with your other professors. You see, in order to be chosen for the award, you need to have three professors sign the nomination. Dr. Jones, Dr. Harvey, and Dr. Small were more than glad to do so.
W: This is such a surprise. I can hardly take it in.
M: Well, I think you have a very good chance to win it.
W: Dr. Foley, the fact that you think highly enough of me to make the nomination is more than enough for me. I’m really happy just to be nominated.
M: You deserve it. The selection committee will be calling you to set up an interview. Call me when they do, and I’ll meet with you to give you some suggestions on how to prepare. If you get the award, you’ll receive five hundred dollars along with the certificate of honor.
W: Thank you so much, Dr. Foley. I’m really honored.