A Basic AI chatbot 

Hello, I am your chatbot! Type "exit" to end the conversation.
You: hi
Chatbot: Hello! How can I help you today?
You: how are you
Chatbot: I'm an AI, so I don't have feelings, but I'm functioning well. How about you?
You: tell me a joke
Chatbot: Why don't skeletons fight each other? They don't have the guts!
You: goodbye
Chatbot: Goodbye!

[Program finished]