Conveyors are a clever take on the 'loop' theme, and while it starts slow, the difficulty progresses at a good pace for a jam game! Reminds me of Mini Metro or Flight Control. Initially I though it was intentional that the last guy from a flight didn't receive their bag, but after playing a bit more it feels like it might just all be random.
It would be nice if losing the game was because I was placing bags on the wrong conveyors, and not just because the input was not giving enough of the right bags, but I understand that's a tough thing to balance (don't want the player able to go on forever!) Or maybe that is how it works and I'm just bad.