Flew from Grand Rapids to San Diego for a long weekend with my mother. Upon returning on Sunday April 25, one bag was lost. We stood at the carousel until the last bag was out. The carousel kept spinning but the belt stopped and her bag was not there. My mother and I rushed over to the United counter because we needed to report the loss and hurry to get her home. She is elderly and was exhausted. Brenda, the United supervisor refused to start the process until the carousel stopped rotating. Really. I was stunned- because the carousel is turning empty you won't start it? She had a terrible attitude, slowly and deliberately even slower, she sauntered over to the carousel and grabbed a left over bag. Slowly walked or to the office and returned to the desk. Then another woman came out from behind and took us over to the office and unlocked the door. Twenty minutes later we got out of there. The girl that finally did it was kind enough but so slow. I mean SLOW!! It was ridiculous. She seemed to never have done this process before. Meanwhile, Brenda is behind the United desk doing nothing. Zero. She was incredibly rude and dismissive. Flying is tough these days, but when a United representative behaves that way it makes me simply fly Delta or AA. Brenda. Supervisor, Sunday, May 25, 3;30 p.m do read more