Software as a service (SAAS) services featuring software for customer or user engagement using conversational artificial intelligence; Software as a service (SAAS) services featuring software for customer or user engagement using conversational artificial intelligence; Software as a service (SAAS) services, namely, hosting software for use by others for use in facilitating customer or user engagement using conversational artificial intelligence; Application service provider (ASP) featuring software for use in facilitating customer or user engagement using conversational artificial intelligence; Application service provider (ASP) featuring application-to-person (A2P) software for use in one-way text message communication from customer or user engagement using conversational artificial intelligence; Application service provider featuring application programming interface (API) software; Application service provider featuring application programming interface (API) software for customer or user engagement using conversational artificial intelligence; Computer services, namely, acting as an application service provider in the field of information management to host computer application software for the purpose of customer or user engagement using conversational artificial intelligence; Computer services, namely, acting as an application service provider in the field of knowledge management to host computer application software for the purpose of customer or user engagement using conversational artificial intelligence; Intelligent natural language understanding services using cloud-based software technology