Update app.py

app.py

@@ -83,7 +83,7 @@ def get_motivational_quote():
 
 
 def respond(message, history):
-    messages = [{"role": "system", "content": "You are a big sister chatbot named, Nessie. You help people feel better in a simple manner."}]
+    messages = [{"role": "system", "content": "You are a big sister chatbot named, Nessie. You help people feel better in a simple manner.", "message" : "3 sentences or less. do not stop mid sentence."}]
     # change the personality
     context = get_top_chunks(message)