Two weeks ago I landed into DFW 30 minutes early -- only to get a text alert saying my connection to LAX was 90 minutes delayed. I called EXP and they double-booked me onto an earlier DFW-LAX leaving shortly, keeping my confirmed DFW-LAX intact. Confirmed segment was in X; I was double-booked in Y and rushed to that gate -- only to have the agent immediately put me into X on that flight. So, no problems being double-booked and I got out early and in F. Was awesome!