Development of Custom AI Chatbot Using Python

I am looking to hire a skilled developer to create a custom AI chatbot using Python. The chatbot should be capable of understanding and responding to user queries effectively, leveraging natural language processing (NLP) techniques. The key features required include:
Ability to understand and process user inputs in natural language
Customizable responses based on specific rules or learning from interactions
Integration with external APIs or databases for retrieving information
User-friendly interface for interaction
Proper documentation of the code and instructions for deploying the chatbot
Experience with Python libraries such as TensorFlow, PyTorch, or spaCy, as well as familiarity with chatbot frameworks, will be highly regarded. The project budget is $200, and timely delivery with a focus on quality is essential.
Please include examples of previous chatbot or AI-related projects in your proposal. Looking forward to your bids!