Using meeting type Appointment Type, you can use FreeBusy's feature to automatically determine times when you are available.

Times are decided based on your calendar availability, your work hours, you schedule and your preferencing.

Here is how you can update your available times:

Step 1: Go to "Appointment Booking"

Step 2: Click on "Manage Appointment Types"

Step 3: Click on "Add Appointment Type"

Step 4: Select "Automatic" in how to set available times section

Step 5: Once created locate this Appointment Type and click on "Change hours".

Change hours based on the time you have available for this type of meeting.

Make sure you click on "Save" and go back.

You will see automatically determined available times based on your preferences listed.