Planning a trip with my son to BKK in April. Quickest outbound flight is DTW-ICN-BKK, but DM Line says that they can only request seats "near front or aisle" but no guarantee of response or seat commitment from KE. I've had good luck on KL and AF with twitter contact and getting confirmed good seat assignments as DM, but haven't flown KE before. Any advice on how to get a seat assignment on KE? Alternative routing is through PVG connecting on MU.