app.py

import openai
import gradio as gr
import os

openai.api_key = os.environ['api_key']

messages = [
{"role": "system", "content": "You are an AI specialized in Marketing and PR. Do not answer anything other than marketing and pr-related queries."},
]

def chatbot(input):
    if input:
        messages.append({"role": "user", "content": input})
        chat = openai.ChatCompletion.create(            model="gpt-3.5-turbo", messages=messages         )
        reply = chat.choices[0].message.content
        messages.append({"role": "assistant", "content": reply})
        return reply

inputs = gr.inputs.Textbox(lines=15, label="Post your question below")
outputs = gr.outputs.Textbox(label="Reply")

gr.Interface(fn=chatbot, inputs=inputs, outputs=outputs, title="SMC AI Chatbot",
             description="I am happy to assist you on anything related to Marketing and PR information",
             theme="compact").launch()