Connect your Google Calendar to the site and Calendly will know when you have events marked as busy. Then you can share a link to your Calendly page and your invitees can schedule their own appointments with you, working around those busy/unavailable times. The invitees never have access to your dashboard showing all your appointments, but they can choose from various appointment types—15, 30, and 60 minute meeting intervals. You can add, delete, or customize these event types.