Steve updated his iPhone to iOS 9.3.5. Leo says it's important because it fixes the exploit that enables countries to spy on iPhone users. But now Siri isn't working for Steve. He gets an error that he can't understand: "Please Try Again." Leo says a dirty microphone can easily do that. If it's also an issue via Bluetooth, then it points to something else. It could be a bad update. He can still dictate messages, though. Leo says that's a Messages issue then. The only thing he can do is backup his phone and do a factory reset.
Steve's other choice is to make an appointment to see a Genius at the Apple Store.