add some labels

app.py

@@ -36,11 +36,10 @@ def feedback(text):
 
 iface = gr.Interface(
     chat,
-    ["text", "state"],
-    ["chatbot", "state", gr.Textbox(
+    [gr.Textbox(label="Send messages here"), "state"],
+    [gr.Chatbot(color_map=("green", "gray")), "state", gr.Textbox(
             label="Feedback",
-            lines=1,
-            value="Feedback on use of language will appear here",
+            lines=1
         )],
     allow_screenshot=True,
     allow_flagging="never",