It's not letting me cancel the flight because it's in September. I paid extra money so that if I needed to cancel my flight, I would get a full refund. My sister is very sick. I submitted documents online. I don't want to make future reservations. The system is telling me they don't have a cancellation request, but I have a reference number. I need to talk to someone. User's recommendation: Do not book anything through Justfly. Go straight to Delta or whomever you choose to fly with.