A slot they book themselves, in your own hours.
Set your weekly windows once. A customer, a lead or anyone with the link sees only the slots that are actually free, books one, and gets a video link and a calendar file without anyone on your side typing an email.
Availability you set once, per day
Add as many ranges as you like across a week, in your own timezone. The public page shows the same slots your own preview shows before you publish it, and busy time is worked out from meetings already on the calendar, not guessed.
Two zones, when they differ
When someone books from a different timezone to yours, the invitation and reminder show both — your time and theirs — so nobody turns up an hour early or late because a clock was silently converted somewhere in an email chain.
After the meeting happens
Mark it complete or no-show and it stops needing an outcome; leave it, and the record says so plainly rather than sitting scheduled forever. Send invites, reschedule or cancel from the meeting itself — the host and anyone with the right access can act on it; everyone else simply sees it.