Help me create a user case diagram based of this:

Use case title: Update status of cases as they progress through the dispatch process

Primary actor: Dispatcher

Level: User goal

Stakeholders: Dispatcher, ambulance crews, patients

Precondition: A case has been assigned to an ambulance crew, and the dispatcher needs to monitor its progress.

Minimal guarantee: The dispatcher can update the status of the case as it progresses through the dispatch process.

Success guarantee: The dispatcher can ensure that the case is being appropriately handled by the ambulance crew and take appropriate action if necessary.

Trigger: The dispatcher needs to monitor the progress of a case.

Main success scenario:

The dispatcher accesses the system to view the status of the case.

The system displays the current status of the case.

The dispatcher updates the status of the case as it progresses through the dispatch process.

The dispatcher takes appropriate action if necessary, such as reassigning the case or providing additional support.

Extensions:

If the ambulance crew encounters any issues during the response, the dispatcher takes appropriate action, such as reassigning the case or providing additional support.