book time slots
Query Availability | REST - dev.wix.com
Google Work/School Accounts only: https://support.google.com/calendar/answer/190998Use Google Appointment Slots to let people book a time with you (Google Ac...
SignUpGenius Pricing
I used SignUpGenius for our school book fair, which is a five-day fundraising event with multiple tasks covering approximately 30 time slots and requiring dozens of volunteers.
The Events Calendar Appointment Booking Plugin for WordPress
Use The Events Calendar and also allow users to book individual time slots with the Simply Schedule Appointments integration.