Generate utterances for Amazon Alexa Skills is the solution for you. If you are a developer, as I am, probably you don’t like to write documentation and this kind of thing. Instead of working on hundreds of sentences, is much simpler to write some schematic sentences like:

(/please) tell me a (/funny) joke

Using one of the following tools it will generate:

please tell me a funny joke
please tell me a joke
tell me a funny joke
tell me a joke

Tools:

• http://www.makermusings.com/amazon-echo-utterance-expander/ documentation here
• https://lab.miguelmota.com/intent-utterance-expander/example/

Good luck there at creating utterances. If you wanna know how to Convert sounds for Amazon Alexa Skills please read the article.