He thinks this time that maybe he better explained himself. Does he know if this will work; if there isn't some particular reason the train thinks that helping Tai is impossible? No, but it's the very reason they can just let those answers be enough.

Be patient. Trust me. Requests the train makes, but without ever giving good reasons for either.

But, then - it's not like it really mattered, what they did or didn't do.

"I know you don't like speaking up, but remember it's for Tai. There's nothing wrong with being demanding."