"My biggest disappointment is not being given a full-time offer at the end of my internship this past summer. However, my manager explained that no full-time offers were being made to interns due to a temporary hiring freeze and cutbacks during the recession. He also said that if the hiring freeze was lifted, I would be the first to be offered a position. In retrospect, I chose the internship role for the opportunity to learn and grow as a water conservationist, and I gained valuable experience that led me to this opportunity to interview with your company."