Yes, you'll find most room reservations are refundable provided that you cancel before the accommodation's cancellation deadline, which often is within 24-48 hours of your scheduled arrival. If you have a reservation that's non-refundable, it might still be possible to cancel it and be given 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 deals available near Adelaide Town Hall.