Update utils.py

utils.py

@@ -24,6 +24,8 @@ from langchain.vectorstores.faiss import FAISS
 book_url = 'https://www.linkedin.com/in/shreyasachdev/'
 book_file = "Book.pdf"
 url = 'http://shreyasachdev.com/'
+pickle_file = "open_ai.pkl"
+index_file = "open_ai.index"
 
 
 gpt_3_5 = OpenAI(model_name='gpt-3.5-turbo',temperature=0)