You know a guy who first saw the new fangled automobiles once said 'That's all well and good, but where do you attach the horse?'
You don't NEED the internet, or digital transactions, or credit cards, or any of the other dozens of technological advancements in wealth management that have come about since the 50s either but they exist and make everyone's lives easier
Tickets as NFTs are a great idea because it absolutely prevents overbooking. Did you ever even consider that? Can't mint more NFTs than the plane has seats