Notification reminder for 'Confirm Review Meeting Held' task

Summary:

Notification reminder for 'Confirm Review Meeting Held' task

Content (required):

Hi,

We created a performance document which includes the 'Confirm Review Meeting Held' whose owner is the employee's Line Manager. We would like to have a Notification reminder which is sent to the Line Manager with a defined frequency if he/she does not perform the assigned task (for instance we would like to send this reminder after two days its assignment, if the Line Manager has not performed the assigned task yet, after four days and so on with a frequency of two days).

How can we implement this kind of reminder? Is there a standard notification, or we have to create a custom one?