Never book with @AmericanAir, I am stranded. I booked 2 round trip flights 5 days ago with confirmed seats beside each other. I made it to my first destination with no problem. On the way to my return flight my boarding pass was removed from my app and waitlist was added, I was forced to go to the Airline gate and when I got there neither flight attendant in Greenville SC attempted to help me until the gate was closed. I urged the importance of having to make this flight, they instead helped a random man who came after me. Never have I ever seen anything so disgusting in my 14 years of flying. The second passenger was denied access to even come upstairs because American Airline changed her name on her boarding pass which she was the only one that was allowed to have a boarding pass. It was so toxic, disgusting and unprofessional that it damn near feels like I was targeted. I was signed in for the flight and still lost a boarding pass? I am stranded and there is no way back to Miami today. I vow to do everything I can to prevent people from flying with American Airline for as long as I walk this planet. I swear this on my life.