Yes, most hotel bookings are fully refundable as long as you cancel prior to the hotel's cancellation deadline, which is often 24 or 48 hours before your arrival date. If you have a non-refundable reservation, you might be able to still cancel and get a refund within a 24-hour period of booking. Plug in your dates, click on "Search", then you can filter by "fully refundable" to view the best deals available near Grotto of Our Lady of Lourdes.