Google assistant to IFTTT to Homey


I have a google home and want to extend some commands on the Google Home (preferable in Dutch) to give some answers based on my sensors.
So, for example, I would like to ask the outside temperature based on my sensors. What I have so far is a flow that can speak using the Google TTS app and tell what the outside temperature is.
But my question is what is the trigger for this?? How can I make sure that this workflow will be started right after my questions to Google home.
Google Home will trigger IFTTT and this will activate the correct workflow but based on what trigger? Basically, the trigger is the IFTTT Call…

Kind regards,