You’re better off using something like BERT rather than shooting a pigeon with a ballistic missile. It easier, cheaper, faster and much more reliable.

How was it trained? Did you just train it on the passages from those books? If so, I am very surprised it retained its conversational capabilities. I would expect it to just go off the rails and generate random 17th century stuff

Not sure what kind of software you need, but here is a tool for ‘easy’ (by hand) gathering of chat datasets for later finetuning: oKatanaaa/lima-gui: A simple GUI utility for gathering LIMA-like chat data. (github.com)

Early work in progress, but may be worth a try.