When my oldest son was a freshman in college, we bought him a ticket to come home from North Carolina for Thanksgiving. On Tuesday night we waited at the airport for him to arrive. No Jimmy. We called his dorm room and he answered the phone.
He naively thought that he had an airplane ticket that could fly anytime he wanted to. He had not noticed that his ticket had a date, an hour, and a destination.
I said, "Go out to the airport tomorrow. Explain to the people at the airlines that you are an ignorant, naïve freshman in college. Beg them to help you. Who knows, someone might feel sorry for you."
He flew in the next day. Most of the time nothing works better than honesty and humility.