Filter message inside an event or interrupt the avatar talking

I want to filter transcripted user voice input inside an event "USER_TALKING_MESSAGE". Is there any way, how to change text in "message.detail.message", or some method to change which text will be send for talking?
Or is there possibility to interrupt the avatar talking? I tried call {handleInterrupt}, but without success in any of these events ( USER_TALKING_MESSAGE, USER_END_MESSAGE, USER_START, USER_STOP, AVATAR_START_TALKING)