history: I had to cancel my Labor Day vacation because I have to work.  I'm very disappointed. I'm having to cancel my Labor Day plans since I have to work.  My boss is taking a trip and we both can't be gone from work.  I'm disappointed.   That stinks!  What were your plans?
current: I was going to Georgia to watch my cousin's son play in his first college football game.  It was going to be a nice family reunion type trip.
next: I'm so sorry you had to change your plans!  Perhaps you can schedule some time after Labor Day to come and see him play?