Yes, most room reservations are refundable if you cancel prior to the accommodation's cancellation deadline, which in most cases is within 24 or 48 hours of the scheduled arrival. If you have a non-refundable reservation, you might be able to cancel it and receive a refund within 24 hours of booking. Plug in your dates, click on "Search", then you can use the "fully refundable" filter to view the best options available near Rynok Market.