Put your guides, drivers, and crew on the same calendar as your bookings — and only ever pick from people who can actually work the slot.
Staff on your booking calendar
Assign team members to tour timeslots, rental bookings, and private charters in a month or week view.
Availability from your team
Employees mark when they can work, so the people available for a slot are listed first when you assign.
No double-booking
One person can't be put on two overlapping assignments, so nobody is scheduled in two places at once.