Not quite "first class", but it impressed me at the time ... I was traveling from Boston to Melbourne, Florida to do some work at the Kennedy Space center in 1975. I was ticketed on Eastern in coach, connecting in Tampa. The flight was late leaving Boston, and I missed my connection in Tampa by 5 minutes, the last flight of the day. A gate agent apologised for not holding the connecting flight for me, and asked if I really needed to get to Melbourne that night. I explained that I did as I had a meeting at the Space Center first thing the next morning. He went off, and came back about 10 minutes later and told me that they had chartered a plane for me. Within 30 minutes I was in the air as the only passenger on a Beechcraft Baron! Imagine the chance of this happening these days.