Who is the best person to send praise to for a BA employee who helped us out at Miami airport at the weekend?

We live in London but my wife has a Greek passport. Unbeknownst to her the Greek government decreed that all passports issued before 1/1/06 would become invalid on 1/1/07. We have since been told that this was an attempt by the Greek government to enter the US visa waiver program by requiring more digitised information on passports - which has failed!

Upon arrival at Miami airport on 4 January on our return from a New Year holiday in Florida, the check-in assistant told us that my wife could not travel back to London and referred us to the ticketing desk. There, a very helpful man arranged flights back to London from Tampa (where the only Greek consulate in Florida is) via New York 48 hours later at no extra charge, booked us flights from Miami to Tampa and even rang round hotels to find us somewhere to stay that night and dug out vouchers to get us a cheap rate.

Due to lack of space he put me in WT+ and the rest of the family in WT (I felt like one of those businessmen who consigns his family to steerage) and then at New York we were all upgraded one class - an even better result and my first ever upgrade. The lounge dragon at New York said that the fact that my silver status was expiring two days later may have helped - any truth in that? Unfortunately due to 200mph tail winds the flight back was rather short!

As it happened the check-in assistant at New York did not spot the problem with the passport so we thought that the whole incident had been a waste of time, but it was spotted by passport control arrival in London so our visit to Tampa had been worthwhile after all.

Who should I write to / e-mail to convey our gratitude? Incidentally the series of rude, trying-it-on or downright incomprehensible people that was dealt with by the other assistant at the ticketing desk while we were there was quite an eye-opener!