There are two ways you can set up your ibookfishing site if your business has a group of trusted customers:
- if you only want to allow a small group of customers to make bookings (e.g. you have a driver's ed school and know your students), you can assign passwords (either the same one for all or unique) to users and require the password to enter a booking -- in this case set 'reservation approval' in resource settings to PASSWORD
- If you want to accept bookings from both new and trusted customers, you can mark the trusted users as pre-approved. You can do this is many places, including reservation or user details or site settings / banned and pre-approved users. Reservations of pre-approved users are always confirmed immediately and automatically, even if you require obligatory payments (in such case the pre-approved users don't need to pay anything).