update with better prompt

app.py

@@ -63,7 +63,7 @@ query_engine = index.as_query_engine(
 )
 
 def retreive(question):
-    qns_w_source = "Answer the following question: " + question + " Followed by providing the page and file name of the source document as well, thank you!"
+    qns_w_source = "Answer the following question: " + question + " Followed by providing the page and file name of the source document as well, thank you! As the user might get the answer he or she wants, you could help provide more details and relevant information referred for your answer. This will enable/prompt them to further phrase their questions."
     streaming_response = query_engine.query(qns_w_source)
     #sources = streaming_response.get_formatted_sources(length=5000)
     return str(streaming_response) # + "\n" + str(sources)