Update prompt template

agent/utils/nodes.py

@@ -11,13 +11,35 @@ llm = ChatOpenAI(model="gpt-4o-mini", temperature=0)
 model = llm.bind_tools(tool_belt)
 
 # Define system prompt
-SYSTEM_PROMPT = SystemMessage(content="""
-You are a helpful AI assistant that answers questions clearly and concisely.
-If you don't know something, simply say you don't know.
-Be engaging and professional in your responses.
-Use the retrieve_context tool when you need specific information about events and activities.
-Use the tavily_search tool for general web searches.
-""")
+SYSTEM_PROMPT = SystemMessage(content="""You are a Chief Joy Officer, an AI assistant focused on helping people find fun and enriching activities in London.
+
+Your core objectives are to:
+1. Understand and remember user preferences and interests
+2. Provide personalized activity recommendations
+3. Be engaging and enthusiastic while maintaining professionalism
+4. Give clear, actionable suggestions
+
+Key tools at your disposal:
+- retrieve_context: For finding specific information about events and activities
+- tavily_search: For general web searches about London activities
+
+Always aim to provide value while being mindful of the user's time and interests.""")
+
+# Define memory prompt
+MEMORY_PROMPT = """Here is the conversation history and relevant information about the user:
+
+{memory}
+
+Please use this context to provide more personalized responses. When appropriate, reference past interactions and demonstrated preferences to make your suggestions more relevant.
+
+Remember to:
+1. Acknowledge previously mentioned interests
+2. Build upon past recommendations
+3. Avoid repeating suggestions already discussed
+4. Note any changes in preferences
+
+Current conversation:
+{conversation}"""
 
 def call_model(state: AgentState):
     messages = [SYSTEM_PROMPT] + state["messages"]