Custom command to Google to read HA sensor

Hi,
i’m quite noob on HA, i have configured all sensors and now i start working on scripts.

My goal is to create a custom question like “ok google, tell me the humidity in bedroom” and get response with data read from the hum sensor.

I did something like that with IFTTT, where i can choose what to say (with some alternatives too) and i can choose which response i will get, but im not able to read sensor.

Is it possible to do in HA without IFTTT?
Where i can find some examples?

I searched but i found nothing.

Thanks all