单项选择题

A:I can’t believe I can’t get a plane ticket for the December holidays.I mean,it’s only October.
B:Well,you know I wouldn’t worry about it too much.People cancel their reservations all the time.
Q:What does the woman imply the man should do?()

A.Try to change his reservations to a different time.
B.Travel by train instead of by plane.
C.Continue trying to get a ticket.
D.Cancel his travel plans.