How do get ticket to board a train on Pokemon light platinum?

You can't get a ticket to board a train in Pokemon Light Platinum. This version of the game is a fan-made hack that is based on Pokemon FireRed, and as such it doesn't have the train system that is found in later games like Pokemon Diamond and Pearl.

If you are looking for a Pokemon game with trains, you will need to play a different version, like:

* Pokemon Diamond and Pearl

* Pokemon Platinum

* Pokemon Black and White

* Pokemon Black 2 and White 2

These games all have train systems that allow you to travel quickly between different cities and towns in the region.

Remember that Pokemon Light Platinum is a fan-made game, and as such it may not have all the features of the official Pokemon games.