Google Calendar is designed to be a helpful assistant, so that users can spend less time managing their day and more time enjoying it. You can use Schema.org markup in your emails to help Google Calendar automatically extract event details from confirmation emails for Flight, Concerts, Restaurant reservations or any other ticketed events; Calendar can then add these events to the user's calendar automatically. The events even stay updated in real time if the user's flight is delayed or when they receive an email update.
After an email confirming...
A restaurant reservation
A hotel reservation
An event booking
The following types are supported in Google Calendar.