Updated prompt in app.py

app.py

@@ -33,10 +33,10 @@ def read_chat_file(chat_file):
         raise
 
 def sample_messages(lines):
-    """Sample up to 500 random lines from the chat."""
-    if len(lines) >= 200:
-        start_index = random.randint(0, len(lines) - 200)
-        return lines[start_index:start_index + 200]
+    """Sample up to 100 random lines from the chat."""
+    if len(lines) >= 100:
+        start_index = random.randint(0, len(lines) - 100)
+        return lines[start_index:start_index + 100]
     return lines
 
 def summarize_chat(messages_text, name):