final resp added

app.py

@@ -193,9 +193,9 @@ if prompt := st.chat_input(
             st.markdown(ref_table_string)
 
     # Add assistant response to chat history
-    response = f"""
+    final_response = f"""
     {response}
 
     References:
     {ref_table_string}"""
-    st.session_state.messages.append({"role": "assistant", "content": response})
+    st.session_state.messages.append({"role": "assistant", "content": final_response})