Chatbot using machine learning and Chatgpt

详细信息

I need to use a fee calculator (excel) as a formula. Plus, it prompts Chatgpt API to interact with the clients.Lead generation and a record of the conversations to be recorded and passed to MailChimp (information info).The interface needs to look good in CSS HTML.
This is going on our website (Fee Page). The potential client answers questions, and the output is our fee (a formula dependent on inputs) after they have supplied their first name and email address. This gets passed over to mail chimp to fire off several emails.
I've got the excel formula.The prompts.But not the now how to connect everything up.