A booking system should represent how the service is actually delivered. Consider staff availability, service duration, buffer time, locations, customer details, deposits, cancellation rules, and what happens when a booking changes.
Start with a small reliable flow from available slot to confirmation and reminder. Add more automation only when the business understands the exceptions that staff currently handle manually.
A practical rollout should also define ownership, statuses, notifications, and exception handling. Test real examples such as changed customer details, delayed replies, failed payments, cancellations, and handovers, then record what staff actually need to see. This improves not only the customer-facing experience but also the internal work behind each follow-up.