The WORST customer experience ever!!! I have been flying American Airlines, since they have a hub in Jacksonville, FL, however today was the worst customer experience and disrespect by the gate agents. I was flying from DFW to JAX on 8/4/2022 on the 3:56 pm flight and the plane had to go back to the gate due to engine trouble. We were allowed to deplane, if we stayed close. When I got off the plane, the gate agent (gate A10) was very rude and if looks could kill, I would be dead. I called the American Airlines 800# to change my flight. When I went to the new gate (C7) where my new flight was departing, I asked the gate agents a simple question... I had to wait about 5 minutes before anyone would event acknowledge me, so I proceeded to just ask - "where is the ticketing agent on this floor" and I received a very rude response of outside security. It's no wonder why American Airline customer reviews are so low. I am a Certified Customer Experience Professional and this by far is the worst experience I've ever had. This airline needs some CX training as well as empathy training.