Google Calendar sync

Connect Google Calendar from the Integrations page (one click, Google’s own consent screen) and the sync runs both ways:

Bookings Charlie makes appear in your Google Calendar within moments — and if an appointment is cancelled in Charlie, it leaves your calendar too.

Your Google busy times block Charlie’s bookings. Privacy matters here: Charlie only sees THAT you’re busy, never what your personal events are. Callers simply hear that the time is taken and get offered another.