iOS 12 update allows Siri to suggest you the Shortcuts for the things you do
Use a simple Siri command to access your schedule within seconds.
To use Siri Shortcuts, update your device to iOS 12 (iPhone 5S and newer, iPad mini 2 and newer) and Calendars 5 to 5.12 or later version. If it hasn't
Creating a shortcut:
Go to Settings > Siri & Search > Suggested Shortcuts > All Shortcuts. This menu displays the apps with shortcuts support and the actions you frequently use. Find Calendars 5 on the list and select the preferable option.
You can record a personalized phrase for Siri to perform a shortcut. Tap the Recording icon, say your command and tap Done.