Good day. I am very interested in being able to offer a Chatbot to my customers which is very limited in scope. It should consider only information which is found in a spreadsheet that I maintain with about 40 rows and 120 columns. The Chatbot should be completely unaware of the internet, and respond truthfully based only on my data. How might I acheive this objective with my team of "normal" full-stack developers, with little current experience with Generative models?