Most chemical sleep aids aren’t going to help you in such a short space of time. They’re more likely to add to a sense of grogginess. Sleep aids are really only effective at helping to restore a healthy sleep pattern over an intermediate term.
There is some evidence for melatonin for jet lag but it’s more about reducing the duration of symptoms and I think your trip is too short for you to have positive benefit.
Avoid salty and fatty food, alcohol and caffeine. Keep well hydrated. If you don’t have to do work on the day you arrive, get a little fresh air then rest and try to go to bed at what would be a sensible early bedtime for the time zone, then try to get yourself awake at an appropriate local time as well.
You’ll probably be more jet lagged on the return leg, flying east is usually worse.