Task: I want to travel to Edinburgh Waverley as i am having some personal work at Edinburgh Waverley , find a Train to Edinburgh Waverley railway station from Dundee station for 31 October in the Citymapper app .
Steps:
Open the City mapper app
Go to the Get Me Somewhere search bar.
Type Dundee station in the start point search bar.
Click on the first searched result
Type Edinburgh Waverley railway station in the destination search bar.
Select the second searched result 
Click on the arrow forward button above the drawer