Asiana airlines cancellation policy allows you to cancel your booking under various circumstances. Customers can cancel a free ticket within the first 24 hours after booking.
A specific payment may be applied upon loss of said risk-free period.
Further, Asia flights can be canceled online or offline as per your choice.
The airline also does not require payment in case of cancellation of a reservation due to an emergency. It is fully refundable.
https://www.cancelation-policy.com/asiana-airlines-cancellation-policy