The Live Helper Chat Elastic Search PHP Sample Code demonstrates how to use a plugin that enables statistic generation using only Elastic Search. For ElasticSearch 7, use master branch and for ElasticSearch 5-6, use master-5.x-6.x branch.
Google's Dialogflow Enterprise Edition is now generally available. Since the API-based development suite was acquired, and then renamed, from API.AI, it has remained in beta. Now, generally available, developers can use the tools to build conversational interfaces across many platforms.