Back to Trip and booking Help Articles in this category Difference between KTW and taxi/rental car I had a problem with the ride Cancellation and change Can I book the trip a few days in advance? How do I book a trip? Cancellation and change If your appointment changes or you need to cancel a trip, you can do so in your MOXI account. We can only accept cancelations up to one hour before the ride. Therefore, we recommend that you make changes and cancelations as early as possible to ensure that we can process your request in a timely manner.