I need to make reservations to Florida during Spring Break for my wife and I and when I looked at flights, the fares (on TED) were very high-$650 to $1250/person. I thought I would check loads since I need to book anyway and noticed that while E- was very full on flights into RSW, FLL and TPA, E+ was very empty. My question is: what does UAL do when E- becomes full and no more room, just start giving away E+ seats?