Add Siri Shortcuts on iPhone
Some apps offer shortcuts for things you do frequently, so you can ask Siri to do them for you. For example, a travel app might let you view your upcoming trip event just by asking Siri “Where am I going next?”
Add a shortcut: Tap Add to Siri when the app offers the shortcut, then follow the onscreen instructions to record a phrase of your choice that performs the shortcut.
Use the shortcut: Summon Siri, then speak your phrase for the shortcut. See Ask Siri on iPhone.
Based on your routines and how you use your apps, Siri also suggests shortcuts on the Lock screen and when you start a search. To turn off shortcut suggestions for an app, go to Settings 
> Siri & Search, tap the app, then turn off Suggest Shortcuts.
For information about how to manage, re-record, and delete shortcuts, see the Shortcuts User Guide.