I can imagine a couple of passenger seating arrangements.
One would involve galley slave technology. Another would be based on bicycle seats and pedals. No more flight attendants. They would replaced by goons with lasers. Only white males would be allowed to fly. They would be connected to a system which could collect their co2.
Whoa! I gotta get more coffee! Feel free to express your ideas.
Lol. How about the videos of the slaves rowing in tandem. In the modern version, people would still be rowing to flap the wings of the airplane.
https://www.cartoonstock.com/directory/s/slave_ship.asp