AI Support Chatbot Build

I want to add a professional, formal-toned AI chatbot to the homepage of my site that can confidently field general inquiries, technical support questions, and order-status or tracking requests. The core engine should run on the OpenAI API and be written in Python... (Budget: $10 - $30 USD, Jobs: AI Chatbot Development, AI Development, Database Management, HTML, OpenAI, PHP, Python, Software Architecture)