If it doesn’t work, please specify exactly what doesn’t work. Re-confirm all your steps. Then ask specific questions and post screenshots of what part doesn’t work.
For your dine in / take away without tables, it’s easy - you can just use one department for both and use this setup for switching between dine in and take away:
For the department, make sure you set the Ticket Creation Method to Create Ticket, this will stop it asking for the entity (table).