I’m building a hotel chatbot that collects guest booking details, checks availability using my AvailabilityChecker node, updates room stock, appends confirmed bookings to Google Sheets, and sends confirmations via WhatsApp and email. Right now, I’m stuck in the booking flow because I don’t know how to properly connect the steps so that once a user enters their check-in and check-out dates, the system first checks availability and only records the booking if a room is available. So far, I’ve managed to log booking data directly into Google Sheets, but I haven’t figured out how to make the AI agent check availability before saving the booking.