How do I create a Chatbot that retrieves specific documents that a user requests for?

[alnutile]

Discussed in https://github.com/orgs/LlmLaraHub/discussions/21

^{Originally posted by RobertoGongora June 14, 2024}
I have a collection of misc documents that can span from legal requirements to event brochures for meetups. I want to provide my users with a chatbot interface where they can request specific documents in natural language, like: "I want to download the event brochure for the September meetup" -- and get either a summary with a download URL or a list of URLs if there are multiple results.

The download URL is stored as part of each document's metadata in the collection.