The context of the following conversation is Tracy's mom needed help moving, so Tracy helped her out.:
Tracy says Sorry I'm kind of late today. I was helping my mom..
The friend responds Helping your mom do what?.
Tracy responds She was moving to a new house. I just helped her out..
The friend responds That is really nice of you..
Tracy responds Yeah, but she also did treat me out to lunch..
The friend responds I would have helped if I knew there was free food involved..