app.py

import gradio as gr

import random

def respond(message, chat_history):
        #No LLM here, just respond with a random pre-made message
        bot_message = random.choice(["Tell me more about it", 
                                     "Cool, but I'm not interested", 
                                     "Hmmmm, ok then"]) 
        chat_history.append((message, bot_message))
        return "", chat_history

with gr.Blocks() as demo:
    chatbot = gr.Chatbot(height=240) #just to fit the notebook
    msg = gr.Textbox(label="Prompt")
    btn = gr.Button("Submit")
    clear = gr.ClearButton(components=[msg, chatbot], value="Clear console")

    btn.click(respond, inputs=[msg, chatbot], outputs=[msg, chatbot])
    msg.submit(respond, inputs=[msg, chatbot], outputs=[msg, chatbot]) #Press enter to submit
gr.close_all()
demo.launch()