[LZ_Khan]

Honestly I think this is a problem of over-engineering and simply allowing the user to press a button when he wants to start talking and press it when he's done is good enough. Or even a codeword for start and finish.

We don't need to feel like we're talking to a real person yet.

[joshspankit]

My ideal would be a small "stick remote" with a mic button.

The AI listens as long as you hold the button, and the device is efficient enough to carry with you 24/7.

[amelius]

Or give the AI an Asian accent. If you're talking on the phone to someone on a different continent you accept the delay, so why not here.