Yes, you'll find most hotel bookings are fully refundable as long as you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of your scheduled arrival. If you have a non-refundable reservation, it may still be possible to cancel it and get a refund within a 24-hour period of booking. Add your dates and click on "Search", then use the "fully refundable" filter to get the best options available in Ua 2-dong.