The tutorial I wrote to our wiki does exactly that.
It is not the nicest tutorial ever, and people not experienced with the engine usually have some trouble following it, but with some help they always managed to figure it out at the end.
Unfortunately I do not have the time to create an easier to follow tutorial covering all the basics.
The only thing I can do is to repeat my advice: do not to make a game using our dialogue system if you lack basic understanding of working with Blueprints.
Try to follow some basic tutorial series and make some smaller game first.