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.