Prompt for Input on Google Home

Is it possible to prompt for voice input on a google home via a home assistant automation? I have a dash button that triggers a going_to_bed automation, which turns off lights and sets things up to run in the morning at my usual wake-up time. What I’d like is to be asked when I would like to be woken up and have that value set as the morning alarm every night.

I know its possible to have an action on the home so I could say “Hey google set the house wake up to 7:30”. But, in the spirit of removing all friction, I’d like to drop the “hey google”, as well as being able to just say a time instead of “telling the house” to do something.

My goal process:

  1. Press button
  2. Google Home asks “When do you want to wake up?” Listens for answer.
  3. I say “7:30”.
  4. Home Assistant sets the wake up time to 7:30.

Update: I think what I’m talking about is covered here: Google Assistant Push notifications.

They are only supporting notifications on phones right now, but if they ever expand support to Homes then this is exactly what I want.