In the video, a person is holding a smartphone in their hand and using the Google Assistant to make a call. The person taps on the phone screen, and the Google Assistant interface appears. They type in a name and the Assistant calls the person. The person on the other end of the call answers, and the person holding the phone asks the person on the call to repeat what they said. The person on the call repeats the phrase, and the person holding the phone asks the Google Assistant to repeat what they heard. The Google Assistant repeats the phrase back to the person holding the phone.