Use of this booking system is quite simple. Click on a rink date, select a free 2 hour slot and book it. If you need more than 2 hours (for a 4-wood pairs game as an example then you can book the next, following, 2 hour slot.
NOTE: the rink number indicated is NOT a specific physical rink, the rink you play on (and direction) will depend on what happens on the day, if there is a home game for example then you could be on rink 5 or 6. If yours is the only game at the time booked then you are free to pick any rink to play on or any other free rink at the time.