If the conversation was extended successfully, it's CDO will be returned.
0.1
Example
Extend conversation with player 4
// conversation with player 4 will be extended for 15 seconds from current time
chat.extend(4);
The conversation cannot be extended if the CDO associated with the player has a missing or invalid Conversation Handler Function. Use chat.start() or directly modify the CDO (get it with chat.get()) to define the handler function.