John, the two railroads I worked for had ticketing problems from time to time. The bigger operation had far less, but they had them. Both railroad ticket offices liked to put an unsolved ticketing problem on the train and let the conductors deal with it, while the train was under way. Some conductors would deliberately leave at least two seats open for this very reason. I suspect other tourist road employees would tell a similar story. As Roger pointed out, it's all about customer service, which is very problematic on the C&TS. Hint : a lack of computer skills of some office employees is one root cause.