Connect your Dyson machine to your Google Assistant-enabled device.

Open the Google Home app and tap the plus icon in the top left. Set up a new device and select "Have something already set up?" Search for "Dyson" and tap to select the Dyson Action.

You'll be prompted to link your Dyson account, this is the one you used to connect your machine to the Dyson app.
Follow the instructions in the Google Home app to add your Dyson machines.