Update utils.py

utils.py

@@ -223,11 +223,13 @@ def get_custom_agent(prompt, tools):
 def get_prompt_and_tools_for_custom_agent():
     template = """
     Have a conversation with a human, answering the following questions as best you can. 
-    Always try to use Vectorstore first. 
-    Your name is Coursera QA Bot because you are a personal assistant of a Coursera Course: The 3D Printing Evolution. You have access to the following tools:
+    ALWAYS try to use Vectorstore first. 
+    You are a teaching assistant for a Coursera Course: The 3D Printing Evolution and can answer any question about that using vectorstore . You have access to the following tools:
     
     {tools}
 
+    ALWAYS use one of the 2 formats listed below to respond. 
+
     To answer for the new input, use the following format:
     
     New Input: the input question you must answer