Hello kaylea094,
Welcome to Apple Support Communities.
We are happy to assist you with Siri and dictation.
Please try the steps as listed here: If "Hey Siri" isn't working on your iPhone - Apple Support
If Siri stops responding
- Go to Settings.
- Tap Siri & Search.
- Tap Siri Responses.
- Tap Prefer Spoken Responses to hear Siri speak responses, even when Silent mode is turned on.
We recommend the steps as listed here for Dictation: Use Dictation on your iPhone, iPad, or iPod touch - Apple Support
Dictate text
- To enter text, tap the microphone button
on your keyboard, then start speaking. As you speak, the text appears on the screen. To finish, stop speaking, then tap the keyboard button 
. - If dictation isn’t sure what word it heard, you'll see a blue line under the transcribed word so you can check it for accuracy. To make corrections, tap the underlined word, then select the correct spelling. To replace a word, double-tap it, tap the microphone button , then say it again, and tap the keyboard button .
- To replace a section, select what you want to replace, then tap the microphone button and speak again. To add more text, tap where you want to add new text, tap the microphone button , then speak again.
- To change the language that dictation uses, long press the microphone button , then select the language you want to use.
We also recommend the tips here: If the microphones on your iPhone aren't working - Apple Support
If the microphone doesn't work in a specific app
- Go to Settings > Privacy > Microphone.
- Make sure that the app is enabled.
- If the app has permission to access your microphone, or if it isn't listed, contact the app developer.
If no issue resolution, please contact Apple Support here: Apple Support
Let us know if you have further questions.
Take care.
