Hello GabrielWolf, Welcome to Apple Support Communities!
Siri Troubleshooting~
Ensure that your device is connected to the Internet
Ensure that Siri is on
Enable Location Services for Siri
Providing Siri with user information
Be as specific as possible
Ensure that Siri can clearly hear you
Raise to Speak*
Using Siri with audio accessories
Dictation tips
Additional Information
Siri may not be available in all languages or in all areas, and features may vary by area. Cellular data charges may apply.
* Raise to Speak is available only on iPhone.
Thanks for using Apple Support Communities, have a lovely day
Cheers
Lydia