Check the Source of the Reservation:The reservation data likely came from a user input, such as a form, chatbot conversation, or webhook payload. Look for the platform where the reservation was made (e.g., a messaging app, website form, or API request).If it’s from a chatbot or messaging app, check the chat logs for messages containing reservation details like date, time, or event name.Inspect the Webhook or Input Data:In your screenshot, the error references a webhook ($Webhook().item.json.body.message). This suggests the reservation data might be coming from a webhook.Go to the source of the webhook (e.g., a messaging service like Slack, WhatsApp, or a custom API) and look for the payload or message that includes the reservation details.The payload should contain fields like reservation_date and reservation_time.Example of What to Look For:A user might have sent a message like: "I want to book a meeting on April 15, 2025, at 2:00 PM."Or the webhook payload might look like:{ "body": { "message": { "reservation_date": "2025-04-15", "reservation_time": "14:00" } } }