A . If you have made a reservation through our If you have made a reservation through our online car dispatch system, you are free to cancel up to 3 hours before pick-up time. However, if you cancel your reservation more than 3 hours prior to pick-up, you will be charged according to our cancellation policy, If you cancel your reservation more than 3 hours prior to pick-up, you will be charged a cancellation fee based on our cancellation policy.