Red Eye movie

Red Eye tells the story of a young hotel manager Lisa Reisert who after attending the funeral of her grandmother is on her way back to Miami to make it in time for work the next day. She takes the much delayed Red Eye flight of Fresh Air where she meets Jack Ripner. Soon after take off she realizes that she is in fact kidnapped by Jack who needs her in order to assassinate William Keefe, head of Homeland Security. Jack threatens her with her fathers death if she refuses to co-operate. At 30000 feet and nowhere to run, what does she do?