If you haven't paid for the ticket in full, the airline will automatically cancel it.
Under the Copa Airlines cancellation policy, when the airline cancels your flight, you can claim a refund or choose the next flight at your discretion.
If your flight is delayed for more than three hours, you can cancel your flight and request a refund.
In case of death of your partner or close relative, you can cancel the ticket and request a refund. This also applies if they are seriously ill. (you need proof of valid documentation)