Could use some help with Dialogflow

I’m likely a bit over my head here but I’ve created a simple chatbot with Dialogflow and I want to extract from the webhook call the temperature to set my climate platform to. This is the webhook that is generated: https://hastebin.com/nehepireqo.json. Can anyone give me any pointers as to how to create a handler for this incoming webhook that will extract the value of one parameter (“number”: [72] in this particular example) that I can use in an automation? I am using Nabu Casa webhooks, and I don’t think I’ll bother with the dialogflow integration as its based on a deprecated dialogflow API.