Much of the credit goes to Ehsan Kia for developing his ever so versatile quote list custom API. It was originally intended for streamers to use to store and pull quotes from at random, but it works quite nicely as a method for Nightbot to store and grab ANY kind of information. The URL has Twitch in its name, but it can be used wherever you are using Nightbot (Twitch, YouTube, or Discord).
I will get back to you with the commands rewritten to suit what you want.