A few times, especially while voice dialing, I’ve had to cancel the interaction. Or you forget mid sentence what to say.
With Alexa, it seems if a command trails off, the interaction is canceled. With Google Assistant, this doesn’t seem to be the case and can result in some frustrating experiences.
“Actually, cancel that” or “never mind” or “stop” should be default commands for stopping interaction. Especially while driving, this feature could save on distractions.