How to integrate small talk support in a business intelligence chatbot?

I'm new to NLP, (hopefully, I didn't mess up terms, my apologies if I did) and I'm currently working on chatbots. I was wondering if you have a chatbot that is dealing with a company's billing, subscriptions, cancellations etc, but we want it to also deal with small talk. So if a customer were to initiate some kind of small talk mid-conversation, the chatbot should be able to cater to it accordingly without us having to switch it over to …

business business intelligence chatbot intelligence languagetechnology small support talk