Originally Posted by ernestnywang

From an availability point of view, it would theoretically be a workaround. However, for many airlines these days (certainly including JL), if a TA were to do that, the TA would get a very big fine and may have booking/ticketing access suspended. If an airline employee were to do that, I dunno... Maybe they can get away with it, but you will have to find one rookie/careless enough to do that for you without a good reason.