I haven’t flown on a non-Delta aircraft in over a decade, but when a travel newsletter I get said American had round-trip flights to Chicago for $49 a few months ago, I bought 5 for the weekend of Sept. 11. Why that date and that city? In 1997, I graduated from Alabama and moved to Atlanta to begin working at IBM. I didn’t have any friends in Atlanta, so when a guy named Jesse showed up at my hotel room during an out of town training class and…