I booked a vacation package through a third party company. That company was not that great also, but the worst part of the trip was only one flight with American Airlines. I had a flight from Chicago to LA, first, I was not able to choose my seats for the flights. I had a ticket for my wife and me, but the available seats (even a month before the flight) were in the middle of three seats only. I tried to change it during check-in, the very unpleasing, annoying, stressed woman at the O'hare airport told me it is impossible and she was very rude. (We ended up sitting separately) Since I was trying to catch the plane, I did not argue with her. But the awful service did not cease. When I was on the line for security check, another annoying woman came and told me in a very rude way that I needed to check in my carry on baggage. I said to her that I have to run for the flight and might not catch the plane, she continued her rude attitude and forced me to leave the line and check-in the carry on baggage. (I took the same baggage with all other airlines to other flights with no problem, because it was in allowed sizes) I found out that the first woman actually sent the latter one to force me to check in the baggage just to make me pay $25. I had a similar problem earlier with this company for an international flight, when I had to use this airline as a part of my overseas trip. They charged me for the second luggage, even the actual airline (THY) that had an agreement with AA for domestic flights clearly allowed for two pieces. I came to the conclusion that AA would do anything to steal $25 or $50 from every passenger. After first experience, I had been determined not to use this airline, but since it was only one flight of my vacation package I thought it would be OK. But I was clearly wrong. I had two flights with this company, and I will never use it again. I would not recommend this airline to anyone who do not like stingy companies that do not value their customers. Awful service, awful employees.