Botium Box comes with batteries included - out-of-the-box there are datasets available in Botium Box you can use for testing and training your NLP engine.
More than 70.000 user examples
More than 20 languages (english, german, french, spanish, …)
More than 40 domains (smalltalk, banking, travel, insurance, customer support, security, …)
Botium Coach will work very well with those datasets.
In order to use them with Botium Coach, you will have to rename the utterance lists to the intent name your NLP engine is using.