Yes, the majority of room reservations are fully refundable provided that you cancel before the hotel's cancellation deadline, which in most cases is within 24 or 48 hours of your arrival date. If your reservation is non-refundable, you might be able to cancel it and be given a refund within 24 hours of booking. Enter dates in and click on "Search", then you can filter by "fully refundable" to get the best deals near Trade rows.