With Vyte, you can easily prevent double bookings by using our Shared availability feature. Invitees will be able to see you calendar (without all the details), so they can book you accordingly to your free slots.
And if they sign up on Vyte, they will also see they calendar and availabilities directly with your availabilities too.
When your invitees suggest new dates, it will automatically be added as an OPTION in your calendar. So people will be not be able to book you unless you confirm the meeting.
When the meeting is confirmed, the Options will delete by itself and your slots are free again. Everything is done automatically so manual task is needed.