After a meeting time is selected by the recipient, a calendar invitation will be sent to the recipients on the email in which the Book a Time link was sent. Any recipients on the “cc” list of the original email are added as "optional" attendees. You as the sender of the link will also see that a calendar invite populates on your Google calendar as well.
Please keep in mind, Book a Time is intended to send to individual recipients in an individual email to book an individual meeting.