If you're not ready, don't
say you are then, it's that easy.
bfisk - If your age given in your profile is accurate you obviously were not around in the days of the 'double Palma' etc. from UK and other European cities. It was common practice for operators, particularly Spanish ones, to call for start when clearly not ready, thus blocking all who called after them, (first come, first served), and who were (fully) ready. Delays of two or more hours were common and made for a very long four sector duty day.
The Scandinavians had the right idea, on any Saturday in summer it was a common sight to see five or six stretched DC8s on the tarmac at Palma or Ibiza etc. One round trip, well over 200 punters out and back, no problem.