AI-Enhanced Customer Portal Development

I am looking for a skilled developer to create a customer portal with integrated AI assistant. The portal will primarily interact with an Excel file to retrieve data and make demands when necessary.

Key Requirements:
- A customer portal that can be developed using any suitable platform. I have no specific preference but please ensure the platform can support the required functionalities.
- The AI assistant should retrieve data from an Excel file; bring answers about order tracking number, etc and if necessary, create demands based on the information and scale to the backlog team. After backlog team answers, the demand will be uploaded to the excel file to retrieve information again. This excel file will be mirrored to the customer portal also.
- Client interaction with the AI assistant should be via text input.
- Also, I'd like to mirror the excel file information to a page on the dashboard, to show the data from the sheet.

AI functionality:
I'd like to have an AI Assistant to guide clients with well-known questions, by doing a look up on the excel file in the database (main source), and bring simple answers to the users, like: "Where's my order number XX" and the AI look up in the excel file to find out the information after matching some triggers. If an order is not shipped yet after retrieving information from the sheet, it would generate a ticket on a excel file to be read and act by our operational team.

I am open to suggestions and recommendations to improve the project. Please propose your approach and relevant experience.