Also if you want the logic of what happens when that is said to be inside Hubitat via RM or Simple Automation for example, I would create a virtual device that the routine changes in some way, easiest way imo is just a virtual switch. Then have the rule track that change and do as you please.
Another more intense approach is using Node-RED and using the alexa-contrib-remote2 nodes, which see the transcription of any voice command you give Alexa, which you can then filter and do as you please. This method is the most complex, external device (RPi), Maker API, etc. but also is the most flexible.
