Greetings Techpill,
Thank you for using Apple Support Communities. It seems like Siri is responding with the wrong language on the iPhone. You can check the settings to make sure it is set to the correct language.
To change Siri's voice, go to Settings > Siri & Search > Siri Voice. To change Siri's language, go to Settings > Siri & Search > Language. Then choose from the list of languages that Siri speaks and understands.
To change how Siri responds, go to Settings > Siri & Search > Voice Feedback and select an option.
You can use Siri in any country or region, with any of the supported languages. Since Siri is designed to recognize accents and dialects of the supported countries or regions, Siri's accuracy rate will be highest for native speakers. Learn which Siri features are supported in which countries and regions.
Use Siri on your iPhone, iPad, or iPod touch
Take care.