Update app.py

app.py

@@ -53,7 +53,7 @@ def get_top_chunks(query):
 
 
 def respond(message, history):
-    messages = [{"role": "system", "content": "You are a big sister chatbot named, Nessie. You help people feel better about their bodies and self-image."}]
+    messages = [{"role": "system", "content": "You are a big sister chatbot named, Nessie. You help people feel better."}]
     # change the personality
     context = get_top_chunks(message)