A)The man has changed his destination.
B)The man is returning his ticket.
C)The man is flying to New York tomorrow morning.
D)The man can't manage to go to New York as planned.
原文：
M: Excuse me, I have a ticket for the 6 o'clock flight to New York. But I'm afraid
I can't make it. Is there a seat available for tomorrow morning?
W: Let me see. I'm sorry. All the morning flights have been booked up. The earliest
we can get for you is the two o'clock flight in the afternoon.
Q: What does the conversation tell us?