Goto: SETTINGS>GENERAL>RESET>RESET ALL SETTINGS
Then follow the commands and reset your phone. You'll have to re-enter some info like Wi-Fi settings/passwords.... and then turn Siri and Location services back on.... but thats it and Siri should start to work again.
Maybe Apple will come out with another fix, but for now, this seems to do the trick.... Good luck and let me know how you make out.
This worked and Siri Is working again; I also used the icloud backup and everything on the phone is has it was a few days earier, thanks Woody316 for the info; this was starting to be a bother! 😎
Steve C aka Converted to Apple