Confirmation dialog for “cancel appointment” (customer side)

Please add a very simple confirmation dialog (OK / Cancel) when the “Cancel”-link is pressed by a customer in “upcoming appointments” under My Account.

Reason: the space on mobile devices between “Cancel” and “Reschedule” is very small. Some customers unfortunately hit the “Cancel”-Link when they want to reschedule. There is no way for the customer to undo this and we get a couple of phone-calls every week because of this mistake.