I flew Braniff International in 1962. We departed Miami International Airport and I got off in Panama.
In 1962 the Boeing 707 was the crown jewel in every airline’s fleet. Ten years later if it still being used it was by charter outfits.
I know I didn’t fly first class but the service in coach (?) was superior to what you see in first class today - hot three course dinner, desert, snacks, coffee or tea or soft drinks and you paid extra for drinks. Your stewardess knew you name by the time she collected the dinner dishes.