By default a booking form reserves one spot for each person. And each person may only ever book one spot to a booking. However it is possible to make changes to your web form so customers can choose the number of spots for a booking.
To do this add the following field to your booking form:
<input class=cat_textbox id=BookingAllocation name=BookingAllocation>
<input type=text name=”BookingAllocation” onChange=”if (this.value > 5) this.value=5;”>