private bool ScheduleInMorning(Talk talk, Day day)
 {
     foreach (var track in day.Tracks)
     {
         var duration = talk.Duration.Value * (int)(talk.Duration.Unit);
         if (TalkCanBeScheduledInMorning(duration, track))
         {
             track.MorningSession.Talks.Add(talk);
             track.MorningSession.TimeRemaining = track.MorningSession
                                                     .TimeRemaining.Subtract(new TimeSpan(0, duration, 0));
             return true;
         }
     }
     return false;
 }
 public ConferenceSingleTalkLoader(Talk talk)
 {
     _talk = talk;
 }