Thought I'd add a similar thread to what is over on FT. My thanks go out to Angela at ORD. Last week I was in HSV scheduled to fly back to YYZ via IAH. However, IAH was completely snowed in and CO was absolutely no help. I had to cancel and rebook via UA to ORD then AC to YYZ. At ORD, AC flight was delayed by one hour due to a fuel spill on the tarmac. Angela saw my SE tags on my carry-on, called me over and had me upgraded to J. Well done Angela and thanks!