Hi there, I have a question regarding an itinerary that involves four flights, and three airlines, all in different alliances. The itin is as follows: RGN-BKK (on TG), BKK-HKG (on TG), HKG-FRA (on CX) and FRA-JFK (on DL). There is just one e-ticket number, issued by CX, though each airline has it's own locator. My question is: when I check in initially at RGN, will they be able to check me in all the way through to JFK, or will I need to check in everytime the airline changes (at HKG and FRA)? Thanks in advance for any and all answers!