Yep - it needs to be ready as soon as I'm done talking and I need to be able to interrupt it. If those things can be done then it can also start tentatively talking if I pause and immediately stop if I continue.

I don't want to have to think about how to structure the interaction in terms of explicit call/response chain, nor do I want to have to be super careful to always be talking until I've finished my thought to prevent it from doing its thing at the wrong time.