This Alexa skill will get you information about train departures on the Belgian NMBS/SNCB network. Most of the skill flow is as such that Alexa will ask you the necessary information. When connecting for the first time, Alexa will ask for a departure & arrival station, and then fetches departure info about the next 5 trains. Arrival and departure stations are then set, but you can always change that by saying : I leave at {station} / I arrive at {station} (or even shorter : from {station} / to {station}). The skill also asks whether you want a direct (non-stop) connection or if any train connection will do. This skill is based upon the iRail.be API, big shoutout to their work.
This skill is by no means affiliated by the SNCB/NMBS.