chatbot programmer

I am looking for a talented programmer to develop a chatbot for me that can be integrated with Facebook Messenger. It should have a focus on sales and marketing, and have the complexity of some AI. The chatbot should be able to understand consumer questions as well as provide personalized responses. It should also be able to integrate with third-party software such as CRMs and customer databases. It should recognize customer intent and offer relevant responses, while also providing consumer data and analytics. The programmer should also be able to provide ongoing technical and customer support to ensure the chatbot works properly.