You can easily book your slots in the Courier App. To do this, go to the “Planning” section in the Courier app and view your overview of the day and planning for the coming days.
The available hours will appear in white, while the full ones will be highlighted in gray. Just touch the available hours in which you want to connect to the app, which will turn green to indicate the booking has been made. Remember that hours marked with a padlock cannot be deselected.