Is there a report that shows when a PTO request was approved and when the employee requested it?

Yes - to run a report that displays the dates for PTO Requests along with PTO Request Approvals:

1. From your Home page, go to Reporting > Create New Report.

2. Select Time Off Request as the report type.

3. Create the report.

4. Click on Edit Columns to bring in the preferred fields. 

5. After the fields have been added, apply the filters for your desired time frame to reflect the PTO Request and Approval dates.