diff --git a/apps/backend/backend.zip b/apps/backend/backend.zip
index af4055c6..5b5eca30 100644
Binary files a/apps/backend/backend.zip and b/apps/backend/backend.zip differ
diff --git a/apps/frontend/frontend.zip b/apps/frontend/frontend.zip
index d6ad0e3d..1058c77d 100644
Binary files a/apps/frontend/frontend.zip and b/apps/frontend/frontend.zip differ
diff --git a/apps/frontend/pages/2_WebChat.py b/apps/frontend/pages/2_WebChat.py
index 470070ca..62c8625c 100644
--- a/apps/frontend/pages/2_WebChat.py
+++ b/apps/frontend/pages/2_WebChat.py
@@ -24,7 +24,8 @@
 - Bing Search (***use @bing in your question***)
 - ChatGPT for common knowledge (***use @chatgpt in your question***)
 - Azure SQL for covid statistics data (***use @covidstats in your question***)
-- Azure Search for corporate knowledge - Arxiv papers and Covid Articles (***use @docsearch in your question***)
+- Azure Search for documents knowledge - Arxiv papers and Covid Articles (***use @docsearch in your question***)
+- Azure Search for books knowledge - 5 PDF books (***use @booksearch in your question***)
 
 Note: If you don't use any of the tool names beginning with @, the bot will try to use it's own knowledge or tool available to answer the question.
 
@@ -33,12 +34,13 @@
 - Hello, my name is Bob, what's yours?
 - @bing, What's the main economic news of today?
 - @chatgpt, How do I cook a chocolate cake?
+- @booksearch, what normally rich dad do that is different from poor dad?
 - @docsearch, What medicine reduces inflammation in the lungs?
 - @docsearch, Why Covid doesn't affect kids that much compared to adults?
 - What are markov chains?
 - @covidstats, How many people where hospitalized in Arkansas in June 2020?
 - @docsearch, List the authors that talk about Boosting Algorithms
-- @docsearch, How does random forest work?
+- @booksearch, Tell me a summary of the book Boundaries
 - @chatgpt, how do I fix this error: aiohttp.web_exceptions.HTTPNotFound: Not Found
 - @bing, what movies are showing tonight in Seattle?
 - @docsearch, What are the main risk factors for Covid-19?
diff --git a/common/prompts.py b/common/prompts.py
index d81d1c8f..56c24e5b 100644
--- a/common/prompts.py
+++ b/common/prompts.py
@@ -160,8 +160,8 @@
 
 {format_instructions}
 
-- If the human's input contains the name of one of the above tools, you **MUST** use that tool. 
-- If the human's input contains the name of one of the above tools, do not select another tool different from the one stated in the human's input.
+- If the human's input contains the name of one of the above tools, with no exception you **MUST** use that tool. 
+- If the human's input contains the name of one of the above tools, **you are not allowed to select another tool different from the one stated in the human's input**.
 - If the human's input does not contain the name of one of the above tools, use your own knowledge but remember: only if the human did not mention any tool.
 - If the human's input is a follow up question and you answered it with the use of a tool, use the same tool again to answer the follow up question.