I was told by the gate agent from the Salt Lake to the Burbank flight I didn't have a seat only to find out when I got back that I did have a seat he is a photo showing I did have a seat but the gate agent at a 70 said I didn't have a seat the flight was full and it was best for me to go back on my original flight which in return I lost my first class seat the gate agent was totally rude and unprofessional