But who is really going to put together the infrastructure and harness to make all that work? My dad certainly isn't. My mother in law won't
What you describe will just end up a feature on Expedia. The highly technical builders of stuff that love to tinker vastly overestimate how much BS the general public will put up with
Indeed. I have zero desire to put such a thing together just for my own use.
I didn't address that concept at all above, but I think the notion of a million people each independently using the bot to write a million bespoke programs that each do the same things is...kind of a non-starter. It's something that can only happen in some weird reality where software isn't essentially free to copy, and where people are motivated neither by laziness, nor the size of their pocketbook.
If/when someone does put the work into getting it to happen, then I expect to find it on Github for people to lazily copy and use, or for them to make it available as a website or app for anybody to use (with even more laziness) -- and for them to monetize it.