Adding 2 date parameters to a report

Summary

Report needs to report either by Termination Date Range OR Last Update Date Range

Content

I have built a report that has 2 date Ranges on it

Change Date From and To

Termination Date from and To

I couldn't figure out how to use one or the other parameter so I just pick up termination dates for the current year

AND to_char(pps.actual_termination_date, 'YYYY') = to_char(sysdate, 'YYYY'

I have logic setup on the Last Update Date to use the parameters setup (and if nothing is entered into the field, to default to the current day - 14 days)