https://us.**********sony.com/s/question/0D5Dp00002ARE3AKAX/%F0%9D%96%80%F0%9D%95%AF%F0%9D%95%B0%F0%9D%95%B7%F0%9D%95%BF%F0%9D%95%ACdoes-delta-have-a-cancellation-policy-?language=en_US
for more detail view:
https://us.**********sony.com/s/question/0D5Dp00002ARE3AKAX/%F0%9D%96%80%F0%9D%95%AF%F0%9D%95%B0%F0%9D%95%B7%F0%9D%95%BF%F0%9D%95%ACdoes-delta-have-a-cancellation-policy-?language=en_US