Can task priority be automatically populated to be same as severity or urgency field at SR level

The client requirement is that what ever severity customer user enters in iSupport or requests in Teleservice should also be automatically populated in Task Priority so scheduler can prioritize this task over any existing task that has been assigned to resource in the area.  I know optimization in scheduler can help with the re-scheduling of tasks if a higher priority task comes after a non-priority task is already scheduled for the same resource.

But the issue is how do we automatically update Task priority based on Service Request Severity