Downloadable computer software for providing a conversational user interface that interacts with users; downloadable computer software for retrieving information from a user and delivering to the user context-sensitive information and user-specific information in the field of retail store services; downloadable computer software for providing information to a user from an adaptive, artificially intelligent, machine learning software agent; downloadable computer software in the field of artificial intelligence, namely, software for converting natural language voice and text into machine executable commands; downloadable computer software, namely, an interpretive interface for facilitating interaction between humans and machines via voice and text message-enabled conversational agents and chat bots; downloadable computer software for converting verbal speech to text; downloadable computer software used to process natural language voice and text commands, and create natural language voice and text responses to voice and text commands; downloadable computer software for providing features and purchase information about products and services in response to voice and text data; downloadable computer software, namely, an interactive interface for receiving consumer preference information and providing information about products and services; Downloadable computer software for facilitating electronic commerce transactions; downloadable computer software for use in shopping for retail goods; downloadable computer software, namely, internet browser extensions, plug-ins, and applications for use with electronic commerce transactions and product comparison; downloadable computer software featuring product specifications, price-comparison information, links to the retail websites of others, promotional materials, and discounts in the field of retail and on-line retail store services