Update app.py

app.py

@@ -30,7 +30,7 @@ MODEL_ID = "meta-llama/Meta-Llama-3.1-8B-Instruct"
 # Google Calendar API Configuration
 SCOPES = ['https://www.googleapis.com/auth/calendar']
 SERVICE_ACCOUNT_FILE = 'service-account-key.json'
-CALENDAR_ID = 'primary'  # Update with your calendar ID if not using primary
+CALENDAR_ID = '26f5856049fab3d6648a2f1dea57c70370de6bc1629a5182be1511b0e75d11d3@group.calendar.google.com'  # Update with your calendar ID if not using primary
 
 # Local appointments database (for backup)
 appointments_db = {}
@@ -374,9 +374,16 @@ def process_chat(message, chat_history):
         # Create system prompt
         system_prompt = """You are a friendly appointment booking assistant. You help users book appointments by collecting their name, preferred date, and time.
 
-Be polite and helpful. For any appointment request, make sure to collect the person's name, date (in YYYY-MM-DD format), and time (e.g., '10:00 AM').
+CRITICALLY IMPORTANT: NEVER make up or hallucinate appointment details. If the user has not explicitly provided name, date, or time, you MUST ask for these details before calling any function. 
 
-If the user doesn't specify all the required information, politely ask for the missing details before booking."""
+Follow these strict rules for appointment booking:
+1. When a user asks to book an appointment, first check if they've provided name, date, and time.
+2. If ANY of these details are missing, do NOT call the book_appointment function. Instead, politely ask the user for the missing information.
+3. ONLY call the book_appointment function when you have collected ALL required information directly from the user.
+4. NEVER invent, assume, or hallucinate ANY details - even common names like "John Doe" or dates like "tomorrow".
+5. Use YYYY-MM-DD format for dates (e.g., 2025-05-15) and clear time format with AM/PM (e.g., 10:00 AM).
+
+If the user says something like "book an appointment" without providing details, your ONLY correct response is to ask for their name, preferred date, and time - NOT to make up this information or call the function."""
 
         # Convert Gradio chat history to message format
         messages = []
@@ -410,7 +417,27 @@ If the user doesn't specify all the required information, politely ask for the m
             # Check if response contains a function call
             function_call = extract_function_call(response_text)
             
+            # Additional validation to prevent hallucination
             if function_call and function_call["name"] == "book_appointment":
+                # Verify all required fields are present
+                args = function_call["arguments"]
+                required_fields = ["name", "date", "time"]
+                missing_fields = [field for field in required_fields if field not in args or not args[field]]
+                
+                # Check if any date/time looks made up (basic validation)
+                looks_made_up = False
+                
+                # Check for generic placeholder names
+                if "name" in args and args["name"].lower() in ["john", "john doe", "jane", "jane doe", "test", "user"]:
+                    logger.warning(f"Detected likely hallucinated name: {args['name']}")
+                    looks_made_up = True
+                
+                # Don't proceed if missing fields or suspicious data
+                if missing_fields or looks_made_up:
+                    logger.warning(f"Detected hallucination attempt. Missing fields: {missing_fields}, Suspicious data: {looks_made_up}")
+                    # Skip function calling and let the model ask for the missing information
+                    new_chat_history = chat_history + [(message, response_text)]
+                    return new_chat_history, new_chat_history
                 # Execute the booking function
                 function_result = book_appointment(function_call["arguments"])
                 logger.info(f"Function result: {json.dumps(function_result)[:200]}...")
@@ -607,7 +634,7 @@ def create_gradio_interface():
             inputs=None,
             outputs=[model_status, chat_history, calendar_status]
         ).then(
-            lambda: [("", "Hello! I'm your appointment booking assistant. I can help you schedule an appointment. Just let me know your name, the date, and time you prefer.")],
+            lambda: [("", "Hello! I'm your appointment booking assistant. I can help you schedule an appointment. Please provide your name, preferred date (YYYY-MM-DD format), and time (like 10:00 AM) when you want to book an appointment.")],
             inputs=None,
             outputs=[chatbot]
         )