GoAir — cancellation of tickets

I want to cancel my tickets of 28th march from delhi to lko and lko to delhi because of corona. Site is not giving me the opportunity for the same. My pnr no are sg32ye and bc8y7x. Kindly get the ticket cancelled and refund me the money due to corona. When i tried to cancel it it doesnt show option. It is showing resheduling but not geting the options for the same. Tickets are booked for two passengers named anil kumar tripathi and mohammad farooq.