Nack: Good morning, Mary.
Mary: Good morning, Nack.
Nack: How are you doing?
Mary: I'm good. I'm eating lunch now.
Nack: Oh, sorry. Are you at office?
Mary: Yes, I am. I'm eating lunch at my office.
Nack: What lunch are you eating?
Mary: I'm eating sandwiches.
Nack: That's good.