They need to implement two things: 1.) Flexible seating in aircraft so that each seat can be adjusted forward/backwards between flights by flight attendants.

They need to implement two things: 1.) Flexible seating in aircraft so that each seat can be adjusted forward/backwards between flights by flight attendants. Doing this by seat might be awkward for people sitting next to each other, so maybe do it by row. 2.) Bidding-style airline tickets. How much would you pay for the minimum amount of room? How much would you pay to get the maximum amount of room? How much would you pay to be allowed to recline the seat? How much would you pay to prevent the guy in front of you from reclining the seat? These sound like terrible ideas, but in the airline spirit of dynamic pricing I think it fits.