Update app.py

app.py

@@ -140,7 +140,11 @@ valid_model_names = [model.id for model in Groq().models.list().data if not mode
 st.markdown("<a href='https://groq.com'><img src='app/static/banner.png' width='500'></a>", unsafe_allow_html=True)
 st.write("---")
 
-
+# Reset chat
+def reset_conversation():
+  st.session_state.conversation = None
+  st.session_state.chat_history = None
+st.button('Reset Chat', on_click=reset_conversation)
 
 # Initialize session state
 if "messages" not in st.session_state: