Has anyone figured out how to reserve a seat on Eurowings if itinerary was booked through another airline? I just used Aeroplan points to book a three-leg itinerary, Tbilisi to Munich, Munich to Frankfurt, Frankfurt to Orlando. First two flights are on Lufthansa and the last is on Eurowings. I was able to call Lufthansa and reserve seats on the first two LH flights, but not Eurowings. She said I will have to reserve at check in. This seems crazy, that no one can reserve a seat until check in? Any advice?