Generate a question about the following movie plot: This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (January 2015) (Learn how and when to remove this template message) Kyle Pratt (Jodie Foster), an American aircraft engineer employed in Berlin, Germany, is widowed with a six-year-old daughter Julia after her husband David falls off the roof of their building to his death. Kyle decides to bury him in their hometown back in the U.S., on Long Island, New York. They fly aboard an Elgin 474, a huge passenger aircraft that Kyle helped design the engines for operated by Aalto Airlines. A few hours into the flight, Kyle and Julia fall asleep, and Kyle wakes moments later to find that Julia is missing. At first calm, she begins to panic when none of the passengers or flight attendants claim to have seen her. One of the flight attendants, Stephanie (Kate Beahan), calls the Berlin airport that they departed from and, shockingly, the gate attendant says that they have no record of Julia boarding the flight. In addition, the passenger manifest registers Julia's seat as unoccupied, Julia's boarding pass is missing, and when Kyle goes back to her seat to look for it in the overhead bin, she finds that Julia's backpack is also gone. Fearing somebody has her, she forces Captain Marcus Rich (Sean Bean) to have all of the flight attendants conduct a thorough search of the plane while all of the passengers are told to remain in their seats and not to get up for any reason, including using the plane's onboard bathrooms. As the search goes on with nothing being found, Kyle becomes more and more desperate, and even goes so far as to attack and accuse two Arab passengers (Michael Irby and Assaf Cohen) of kidnapping Julia and plotting to hijack the plane. Capt. Rich and the flight attendants (particularly Stephanie, who is exceptionally unsympathetic) start to suspect that Kyle may be unhinged by her husband's death and that she imagined bringing her daughter onboard. Because of her...
The answer to this question is:
Who is Kyle's husband?