Bookings - include cancel button in notification emails

Is there a way to put an option to either automatically include the cancel button or omit it in the notification emails? Instead of adding it as an additional information because I also don't know where I can get a dynamic cancellation link that can be used to cancel any of the appointments booked. This is a pretty basic feature just like the reschedule button.

The problem if there is no cancellation button in the notifications is that there is no way for the client to cancel the appointment unless he/she saved the cancellation link found in the booking confirmation page after he/she had booked the appointment via the page. Only the admin has the ability to cancel the appointment manually via the bookings calendar.