I first got a call from one of the HR representatives,(FYI: you do not get an email warning of the phone interview), asking basic questions, why pick major? why southwest? why did I apply to the position? What courses have I taken, which did I like and why? What were my future plans for employment and what did I see myself doing in the future?, etc. HR rep was very friendly and outgoing. Got offered 1:1 interview in Dallas, I leave tomorrow, will post after.