Hey! I can help.
I get writers block ALL the time!
These apps might help you get past that and give you inspiration for dialogue!
Danger Notes has you set a time limit and just write for that whole time! If you stop for too long, your work is deleted. If you make it to the check point, you can save or continue writing at a regular pace.
Creative Writer will help you write and continue a story by suggesting words, phrases, ideas, and styles to use!
BrainSparker is my favorite! You can shuffle through the cards and tap on one to get a quote, word(s), or an image to start writing from! You can save your favorite ones and edit decks!