To book appointment in cute booking widget you have to follow the below steps!
STEP 1: To book predefined service and contact, pass the serviceId and contactId to book appointment. This type of widget is highly used when you want to send a email with booking link for your specific service.
STEP 2: Configure your email template with right service id and populate contact id from the contact itself. So that when he receives email he will get a link that is build for that specific customer.
Once the link is received by customer in email, he will click the link and simply selects the date and time to book appointment and click “Book Appointment” button.
STEP 3: Once the appointment is booked you get success message about booked appointment details.