Automated Resort Booking Chatbot with Payment Integration

I need a complete chatbot system to automate booking inquiries for my resort. The chatbot should:
- Handle customer booking inquiries automatically
- Provide room details (availability, price, check-in/out time)
- Collect guest information (name, date, number of people, child age group)
- Send auto-replies and confirmations on WhatsApp
- Save all data in Google Sheet
- Take advance payment (10% of the total booking amount) using UPI/Payment Gateway
- Optionally send booking alerts to me via WhatsApp or Telegram

Additional Requirements:
- Integration with Google Form, Google Sheet, WhatsApp, and UPI/Payment Gateway
- A basic admin panel or editable Google Sheet for tracking and updates
- Ongoing support for 1–2 weeks after setup for testing and adjustments

Timeline: 10–15 days from the project start date.

Budget: ₹15,000 - ₹20,000 INR (flexible for high-quality work).