After you have selected all components of your trip in the online booking dialogue, you have to enter your passenger data. To do this, click on "Book now" and then on "I don't have an account". A window will open in which you have to enter your contact details. In addition, tick the box "Sign up to "My-TT-Line" for managing your booking". Two password fields appear. Here you assign your individual password for your "My-TT-Line" customer account. You'll then continue through your online booking process and after completing it, you can login to "My-TT-Line" at any time and manage your booking.