If your Amtrak ticket doesn't show a seat number, it's likely an unreserved ticket. This means you can choose any available seat in the designated coach when you board the train. It gives you flexibility but remember, seats are first-come, first-served. It's a good idea to arrive early to secure your preferred spot, especially during busy travel times. Unreserved tickets are common on... https://reservationsus.com/what-is-the-cancellation-policy-for-the-train-from-houston-to-san-antonio/