For dates etc - you got it. I think from memory it would be 'Wednesday' + 'the 18th' + 'of' + 'may...' + '20' + '22'
For the narrative speech it would be more words in a file. There are plenty of files (EDIT: just checked 350ish files that cover all the variations of script that can be generated at the moment)
In general the TTS - part of the project is the 'art of the almost possible' (if TTS engines sounded really good - I'd have just used one of the shelf)
Here's all of the current 'starts' for the main prediction:
(Note they're all pretty non commital - so anything could come next)
A bite from a wild animal
A financial matter coming to a head
Completion of a long delayed task
A seemingly generous gesture
A sudden realisation
An agreement with a headstrong peer
An unavoidable slowdown
Being pulled between two emotional options
A sudden eruption of feelings
Investigating a proverbial - light in the woods
Involvement with a purely privte project
Making peace with the past
The chance of a big win
Todays socialising