Update app.py

app.py

@@ -122,7 +122,7 @@ def chat_with_openai(message: str, history: list, temperature: float, max_new_to
         str: Partial cumulative output from the assistant.
     """
 
-    conversation = 
+    conversation = []
 
     if not history and message.startswith("Start a talk therapy session with me."):
         fast_mode = True