Answer:
Just go to the left, and you'll see a man struglling to push a heavy paggage. Click on him, and your character will ask if the man (Thomas Eddison), needs help, and Thomas will say yes. Build a ramp from shortest to tallest, and then click the piece of wood at the bottom, and if you did it right your character will push Thomas Edddison's luggage up onto the train. You'll get a message saying that you won, and then Thomas will give you a ticket to the train. Hope this helps!