If you provide a member area for your clients, you can create a page that will display all of the upcoming and past appointments, so that your client can easily remember and eventually cancel, reschedule or access the video meeting of your appointment from that section.
Insert the shortcode
You can add that shortcode below in a page or post of your choosing:
[wap_history]
It will display a table as shown in the image below.
You can edit the header of that table modifying the shortcode that way:
[wap_history date_label="Date" service_label="Service booked" duration_label="last" staff_label="Practicioner"]