In order to check your website appointment you need to log into the administration dashboard.
1. Go to login page; I.e. https://{replace with site domain}}/wp-admin
2. Log in with email and password given to you
3. Once logged in go to the left menu and click on Appointments > Pending or click on the notification if there for pending appointments.
4. If settings are set as pending you can Approve or Delete Appointments on the pending page.