app.py

import gradio
def chatbot(input_text):
    
   if input_text.lower() == "hello":
        return "Hello, how can i help you."
   elif input_text.lower() == "how are you":
        return "I'm doing well, thank you for asking."
   elif input_text.lower() == "bye":
        return "Goodbye! Have a great day."
   else:    
        return "I'm sorry, I don't understand. Could you please rephrase your question?."
        
demo = gradio.Interface(fn=chatbot, inputs="text", outputs="text", title="Chatbot")
demo.launch()