Events are confusing

As an admin I created a test event and the Going and Interested buttons are confusing. Also when I cancel Going it makes me go through a whole process to put back Going to event. Should be simpler. When landing on the event there should be two buttons. "GOING" and "INTERESTED". When you press one the other button should be made invisible and depending on what button you pressed should be replaced with a "CANCEL GOING" or "CANCEL INTERESTED". If CANCEL is pressed then the buttons revert back to the original "GOING" and "INTERESTED" buttons...