Bring Benadryl if you sleep light. They flew me in to Dallas late and had an interview early in the morning. 8am. I suggest that you travel a day earlier to get settled. Its at the grand Hyatt at the Dallas Airport so planes take off all night. I didn't sleep at all (literally) and after being awake for so many hours I went into the interview and almost fell asleep. So much preparation and I know I would be a good fit. If you get to Dallas you have a 33% Chance. 2 ppl leave with bad plane flight home. Also two interviewers. One plays good cop and one plays bad cop. One will walk you through while the other hits you from different ends with example questions.