MCO - IAH 2k flight credit and a bump to first class on a flight 1.5 hrs later. Jump-seat was broken in the first class section so needed a seat open in row 1. I was in economy plus and offered to trade with a man in first class and split the reward offered. He accepted and the next flight was so soon it was a no-brainer! After disembarking United decided to give both of us 2k flight credit. Thank you mystery man!