Originally posted by coquette
it's not a cancel button. if i remember, you just click on the booked days and it clears them. a little experimentation will get it done. someone will help soon too.
If you want to cancel vacation that has not yet started, then you click on the highlighted days on the calendar to cancel.
When you want to cancel vacation that has started already, then there's a link on the left that does the job (at least, that's what I remember). It cancels unused days only - so cancelling current vacation won't clear your vacation flag until midnight (GMT)