public void RegisterContestant(Contestant contestant)
 {
     contestant.FirstName = UI.ContestantFirstName();
     UI.ContestantFirstName();
     contestant.LastName = UI.ContestantLastName();
     UI.ContestantLastName();
     contestant.EmailAddress = UI.ContestantEmail();
     UI.ContestantEmail();
     contestant.RegistrationNumber = UI.ContestantRegistrationNumber();
     UI.ContestantRegistrationNumber();
 }