Chatbot Market Size By Application (Customer Service, Social Media, Payment/Order Processing, Marketing), By Interface (Standalone, Web-Based, Third-Party), By End-Use (BFSI, Media and Entertainment, Healthcare, E-commerce, Retail, Travel and Tourism), By Type (Rule-Based, AI-Based), By Deployment Model (On-Premise, Cloud) Industry Analysis Report, Regional Outlook, Growth Potential, Competitive Market Share & Forecast, 2018 - 2024