Connecting Arduino project with a virtual assistant

I am a high school student working on a project. I want to know how can I connect the project with a virtual assistant. I.e, if an ultrasound read a value for instance, how can I make a virtual assistant say: " an obstacle detected at a distance of X". Instead of using a buzzer or a led, I want to make the virtual assistant say what the sensor measured. How can I make this? I am really struggling.
Thank you so much :')

Have you considered an audio shield / mp3 player?