This was a bit before I really started keeping track of the planes I have flown on (regretably) but I recall being on a narrow body with very limited amenities that I happened to be on for a flight from Tampa to Charlotte although it originated elsewhere in Florida. The people who didn't get off that sardine can when I did were apparently on their way to Los Angeles. I really can't imagine how miserable that must be. The last time I flew transcontinental I was a young kid and it was definitely a wide body with two aisles. I also know I got something resembling a meal, a look at the cockpit and junior pilot wings among other things so it might as well be a thousand years ago.