You need to create all these things, with Blueprint or C++. They are not parts of the engine (nor any other game engine, really).
For example black stripes would be achieved by creating a HUD with two UMG brushes on top of it, a dialog system is something that you can create quite fast - you just need to show a dialog line and a list of possible answers with buttons to select them. It’s probably something you can do overnight. Those are easy things, to be honest. A quest system is more complex (having worked on one myself).
Now since my trying to help you is “wasting your time”, I’m done here. Good luck with your project.