Hi,
Matej here, web and mobile developer and part time freelancer. Currently working for one company in Zagreb, Croatia, and building chat bots (also part of my master thesis in Software Engineering).
Yeah, it sounded like a student project from the begging! Price would be as given for provided work:
1. Programmed logic and procedures in C#
2. User interface in html + JS + CSS
3. Written description of the developed solution, 1 A4, 12 font.
4. Documented code
5. Support for local or remote setup and demonstration of work
We should discuss which technologies suits you the best cause I assume that you need to understand project on some level, and for context of that app, we can go from proposed quiz game to maybe something more suitable for your needs, but that's fun part.
And yes, you have a deadline?
Hope to hear from you,
Matej