Sorry 4 the really late reply, I read your route was starting in LPL and I am based LTN. Found out who's flying but dunno either one of em. If you still read this be4 the flight, write a polite little note and give it with your lisense 2 the number one whilst boarding. You might have a chance if "El Capitano" is not 2 grumpy....
Otherwise ask 4 a inflight visit but do it early since LPL-LTN is over be4 you know it....
Good luck.