Sisters, Kelly Smith and Kim Dandurand, were sitting in a Fort Lauderdale airport Wednesday, along with their 72-year-old mother and a friend, waiting to board an airplane one day after they were supposed to be back home in Pittsburgh. Twenty-four hours earlier, Smith said they were waiting to take off on Southwest Flight 4427 in West Palm Beach, when she was told she had to leave the airplane for not complying with the mask mandate. “When we got on the plane I was sneezing a little bit and I had kept my mask on, and then because I was sneezing I coughed a little bit, all the while…