On flight 2893 march 13, 2021. The senior attendant in my opinion was short and somewhat rude. Had definitely out lived her coffee, tea, or me shelf life. Not a good representative for the company. The flight was full. When later groups boarded there were empty seats close to the front but people already seated explained that the seat was saved which was not true. People that had to go completely to the rear of the plane only to return to the front to be seated in one of the saved seats. This must be stopped.