A computer-implemented method of handling an audio dialog between a robot and a human user comprises: during the audio dialog, receiving audio data and converting audio data into text data; in response to text data, determining a dialog topic, the dialog topic comprising a dialog content and a dialog voice skin; wherein a dialog content comprises a plurality of sentences; determining a sentence to be rendered in audio by the robot; receiving a modification request of the determined dialog sentence. Described developments for example comprise different regulation schemes (e.g. open-loop or closed-loop), the use of moderation rules (centralized or distributed) and the use of priority levels and/or parameters depending on the environment perceived by the robot.