Hi @lubirgeamatuswq1km5, welcome to Thunkable! 
Be sure to check out our posts about How to ask Great Questions v2.0 and our Community Guidelines as you get started.
This may be difficult to achieve in Thunkable as you are essentially needing to set up a “listener” to know when the AI is sending a message. You can always have it update when user sends a new chat message.
Do you have a project or any blocks you can show us for you progress so far?