Been doing a bit more digging, finding that the Calendar Booking tool for google you guys already have returns the EventID but passing that along to the Structured Data is problematic because I think your VAPI agent is not connected to the structured data output. I'm assuming the structured data output is coming from transcription only and does not have access to the messages for tool responses and so cannot output the data correctly. This has been the case for other structured data, e.g. a date for the booked meeting when spoken by the VAPI agent gets passed correctly, but if it was cut-off by the caller for example, it won't go through to the structured data.