The customer's side
They open your booking link, choose a service, pick a provider when you offer a choice, pick a time from your real availability, enter their details, agree to your policy, and confirm. If the service is set to take payment online, they pay in the same flow.
Your side
The appointment appears immediately on Schedule → Calendar and in Schedule → Appointments. A client record is created or matched under Clients.
What is sent automatically
The customer gets a booking confirmation with the date, time, service, location and a link to manage their appointment. Reminders follow before the appointment if you have them enabled under Settings → Notifications.
Try it yourself
Open your own booking link and book a test appointment, then cancel it from Schedule → Appointments. It is the fastest way to see exactly what your customers see.