Google Appointment Slots work in a similar way to Google Calendar appointments. Once you have set up your appointment slots, you can invite people to your slots using their names or email addresses.
You can also add notes to your slots, and view the schedule for your slots at any time.
If you have multiple people coming to your appointment slot, Google Appointment Slots will let you create a separate appointment for each person. You can also use Google Appointment Slots to keep track of when someone is waiting for an appointment.