Update app.py

app.py

@@ -44,16 +44,16 @@ with gr.Blocks(css = "custom.css") as demo:
     def bot_api(user_message):
         l = user_message.split("[SEP]")
         history = []
-        for ele in history:
-            if not history:
-                history.append(
-                    [ele]
-                )
-            else:
-                if len(history[-1]) == 2:
-                    history.append([ele])
+            for ele in l:
+                if not history:
+                    history.append(
+                        [ele]
+                    )
                 else:
-                    history[-1].append(ele)
+                    if len(history[-1]) == 2:
+                        history.append([ele])
+                    else:
+                        history[-1].append(ele)
         if len(history[-1]) <= 1:
             return ""
         history[-1][1] = ""