I have been trying to figure this out but have had no luck. A search got me this: Facebook Messenger Bot - How to disable bot and allow human to chat
I am using Python but can successfully receive callbacks (and messages echoes) so I can retrieve the result when someone selects "other" in my bot but I haven't figured out how to disable it to allow a human to reply (and reenable it later).
Anybody has done that?
I believe this is currently a beta feature with the Hand-Over Protocol: https://developers.facebook.com/blog/post/2017/04/18/messenger-platform-2.0/