My daughter and I are traveling on UA this summer, and will be returning from Rome (through Munich) to Chicago and finally home. When we booked the tickets, our time was more limited than it is now, and we'd love to stay in Rome longer! I did look into changing our tickets, and it would be about $1000 to do so (ouch). I have heard that UA often overbooks their flights... we would love to be the ones chosen to get bumped, either on the Rome leg or even in Munich. Are there any ways to better our chances on being chosen to move to another flight? Any other wisdom regarding getting bumped?