Natalie Lewis, 24, Ginny Doyle, 44, and a still-unidentified pilot died when a hot air balloon burst into flames shortly after takeoff on Friday night near the University of Richmond. Horrified onlookers heard the women screaming for help as they desperately jumped from the basket to escape the flames. "Help me, help me, sweet Jesus, help. I'm going to die. Oh my God, I'm going to die," witnesses…