When it's close to closing, there may only be 1 train arriving at the requested station. This is how the current voice interface works:
When is the next train arriving at Ballston?
Are you going to Vienna?
Yes.
Sorry, there was a problem with the requested skills response.
Maybe switch to:
When is the next train arriving at Ballston?
The next train from Ballston to Vienna arrives in 8 minutes. There are no other trains arriving at Ballston in the next 20 minutes.
When it's close to closing, there may only be 1 train arriving at the requested station. This is how the current voice interface works:
Maybe switch to: