Refine Claude WhatsApp agent: add empathy, dynamic dates, and cancellation intent

backend/clinicAgent.js

@@ -15,21 +15,37 @@ const anthropic = new Anthropic({
 const LLM_MODEL = process.env.LLM_MODEL || 'claude-3-haiku-20240307';
 
 class ClinicAgent {
-    constructor() {
-        this.systemPrompt = `
-        You are 'Curio AI', the assistant for Curio Health.
-        Your goal is to help patients book appointments.
-        Be extremely concise, friendly, and natural. Do not use markdown.
-        To book an appointment, you MUST collect:
-        1. Department (e.g. Cardiology, Neurology, General)
-        2. Date (Format as YYYY-MM-DD or today/tomorrow)
-        3. Time (Format as HH:MM AM/PM)
-
-        If any of these 3 pieces of information are missing, naturally ask the user for them.
-        Do NOT output JSON until you have ALL THREE pieces of information.
+    getSystemPrompt() {
+        const today = new Date().toISOString().split('T')[0];
+        return `
+        You are 'Curio AI', the highly empathetic and intelligent medical assistant for Curio Health.
+        Today's date is ${today}.
         
-        If you have all three pieces of information, you MUST reply with ONLY a JSON block like this (no other text):
-        {"action": "BOOK", "department": "Cardiology", "date": "2026-05-26", "time": "10:00"}
+        Your goal is to help patients book, cancel, or reschedule appointments, and answer basic clinic questions.
+        Be extremely concise, warm, empathetic, and natural. Do not use markdown formatting.
+        
+        AVAILABLE CLINICS/DEPARTMENTS:
+        - Cardiology (Dr. Sharma)
+        - General Medicine (Apollo)
+        - Pediatrics
+        - Orthopedics
+
+        INTENT 1: BOOKING
+        To book an appointment, you MUST collect:
+        1. Department/Clinic
+        2. Date (Format as YYYY-MM-DD)
+        3. Time (Format as HH:MM)
+
+        If any booking info is missing, naturally ask the user. Do NOT output JSON until you have ALL THREE pieces.
+        If you have all three, reply with ONLY JSON:
+        {"action": "BOOK", "department": "Cardiology", "date": "${today}", "time": "10:00"}
+
+        INTENT 2: CANCEL
+        If they want to cancel, ask them to confirm the date and time of the appointment they want to cancel. Once confirmed, reply with ONLY JSON:
+        {"action": "CANCEL", "date": "${today}", "time": "10:00"}
+        
+        INTENT 3: GENERAL QUERY
+        If they ask general questions (e.g., location, hours), just answer naturally as the assistant. If they express pain or worry, respond with empathy before helping them.
         `;
     }
 
@@ -41,7 +57,7 @@ class ClinicAgent {
                 model: LLM_MODEL,
                 max_tokens: 300,
                 temperature: 0.2,
-                system: this.systemPrompt,
+                system: this.getSystemPrompt(),
                 messages: transcript
             });
 
@@ -49,29 +65,36 @@ class ClinicAgent {
 
             // Try to parse JSON intent
             try {
-                // Remove potential markdown code blocks if the LLM wrapped it
                 const cleanJson = replyContent.replace(/```json/g, '').replace(/```/g, '').trim();
                 const intent = JSON.parse(cleanJson);
                 
                 if (intent.action === 'BOOK') {
-                    // Extract HH:MM
-                    let timeVal = "10:00"; // fallback
+                    let timeVal = "10:00"; 
                     const timeMatch = intent.time.match(/(\d{1,2}:\d{2})/);
                     if (timeMatch) timeVal = timeMatch[1];
                     
-                    // Parse date
                     let dateVal = new Date().toISOString().split('T')[0];
                     if (intent.date && intent.date.match(/^\d{4}-\d{2}-\d{2}$/)) {
                         dateVal = intent.date;
                     }
                     
-                    // Book the token using Dr. Sharma's Cardiology ("sharma-clinic")
-                    // In a real system, we'd map intent.department to tenantId
-                    const result = await queueManager.bookOnline(dateVal, timeVal, phone, 'sharma-clinic');
+                    let tenantId = 'sharma-clinic'; // Default
+                    if (intent.department && intent.department.toLowerCase().includes('general')) tenantId = 'apollo-hospitals';
+
+                    const result = await queueManager.bookOnline(dateVal, timeVal, phone, tenantId);
                     if (result.success) {
-                        return { reply: `Awesome! Your appointment for ${intent.department} is booked. Your token is ${result.token}. You should receive a confirmation message shortly.` };
+                        return { reply: `Awesome! Your appointment for ${intent.department} is booked for ${dateVal} at ${timeVal}. Your token is ${result.token}. We look forward to seeing you!` };
                     } else {
-                        return { reply: `Sorry, ${result.message}` };
+                        return { reply: `I'm so sorry, but ${result.message.toLowerCase()} Would you like to try a different time or day?` };
+                    }
+                } else if (intent.action === 'CANCEL') {
+                    let dateVal = intent.date || new Date().toISOString().split('T')[0];
+                    let timeVal = intent.time || "10:00";
+                    const result = await queueManager.cancelBooking(dateVal, timeVal, 'sharma-clinic');
+                    if (result.success) {
+                        return { reply: `Done. I've cancelled your appointment for ${dateVal} at ${timeVal}. Let me know if you need to book a new one!` };
+                    } else {
+                        return { reply: `Hmm, I couldn't find a booking for ${dateVal} at ${timeVal} to cancel. Could you double-check the time for me?` };
                     }
                 }
             } catch (e) {