When AI finds travel products, instead of a long response, it displays cards you can select immediately. On October 29th, the Google Developers blog introduced an example connecting A2UI with CopilotKit.

The AI sends the UI layout as data, and the app renders the screen using pre-built buttons or cards. From there, when you select a date or flight, the chosen value is passed back to the agent to trigger the next screen.

However, developers do need to pre-define the available UI components. It feels like you can keep the process in one window rather than receiving a chat response and having to go to a separate page to make selections, so I'd love to try it out.