Update app.py

app.py

@@ -177,7 +177,8 @@ In this task, you will receive parsed text from books in two formats: **Markdown
 ### Key Guidelines:
 - **Prioritize Image Information**: Always analyze the image provided first for relevant details. Use the text or markdown information only if the image does not contain the necessary information.
 - **No Image Links**: Your responses should contain only text explanations. Do not include links to images or other resources.
-- **Contextual Answers**: Your answers should strictly rely on the provided context information. 
+- **Contextual Answers**: Your answers should strictly rely on the provided context information. If the information to answer the query is not present, respond with "I don't know," and provide the page number and document name where similar information can be found.
+
 
 
 ### Context: