Hi, i am writing you today because of one of your employees on a flight I took today 4/15/21 - your crew member almost had me arrested Bc of her false claim of me not following her instructions of my dog who I paid to be on the flight. Her claims from the marshals included I didn't follow her instructions to put the dog away. She instructed me before take off that my dog was to be put in his bag and under the seat throughout the flight. I followed this instruction. With 30 mins left in my flight.. my dog was breathing extremely heavy and needed water. So I took him out to give him water and at that moment the crew member then approached me again and barked orders that I need to keep my dog in his bag. I immediately followed this command. Once we landed and made it to the gate I removed my dog and put him on the leash to exit the aircraft. I was then immediately apprehended by marshals and told that I had not been following orders based on the crew members statements against me. Which they also said she called them while we were in the air. I explained my side of the story and they weren't taking it until the passenger who was in my row the entire time stopped and heard what was going on. He just so happened to be a crew member of southwest and was catching a ride home. He told the authorities what I was saying was true and that I followed every command. After speaking with this crew member the authorities decided to let me go. This entire incident was completely uncalled for and I feel like I was extremely discriminated against by this crew member. She repeatedly seeked me out and then made false accusations against me that luckily did not come out to be a federal offense. The emotional experience I had to endure due to this crew member and her discrimination towards me is unfathomable. Someone like this should not be allowed to make false accusations against anyone and I would hope she would be reprimanded so that this would not happen to another person such as myself. Flight #452