Learning, resources and guidance for a newbie

Hi I am starting my AI journey and wanted to do some POC or apps to learn properly.
What I am thinking is of building a ai chatbot which need to use the company database eg. ecommerce db.
The chatbot should be able to answer which products are available? what is the cost?
should be able to buy them?
This is just a basic version of what I am thinking for learning as a beginner.
Due to lots or resources available, its difficult for me to pick. So want to check with the community what will be best resource for me to pick and learn? I mean in architecture, framework, library wise.

Thanks.