I would like to see a fleet contract management page which would allow you to review what players you have contracts with, to what airports you send aircraft and what aircraft type you send to them. This page should be searchable by player name. This would be accessible both in game and at the start page and should include all playable airport contracts on one page, not just the airport your playing.
On this page and indeed on the contract cards themselves having a date and time the player last handled your aircraft so that you can see easily what players are active and those who are not so you can cancel them if the player becomes inactive.