Yup that will give you a very good idea about how it should look come the 72hr window.

Trouble is you need to watch constantly as the inventory levels adjust with each booking made and again at each judgment point made by the computor program [30 days, 14 days, 7 days, 72 hours, 24 hours etc], and again when the controllers look at their reports and make random manual adjustments.

Take into account; Local holidays at origin/ destination, time off year, day of week, block bookings for conventions and tour groups, and any other variance that may affect loads [full moon?].

When you have your system perfected then write a computor program that relects your hypothesis and sell it back to the airline for a few millions.

Seriously though, you are on the right track and barring a few unknowns you can get pretty good at predicting loads if you are only tracking a few flights or routes.

We would do this periodically to check how the PROS system would forecast the loads.