Hi GolferLady6227,
What happens when you attempt to use dictation? Is it completely unresponsive or doesn't pick up what you're saying? Do you get any type of error message? This information will help give us a clearer understanding on what you're experiencing.
Is the watchOS up to date? Updates contain many bug fixes that can help your Apple Watch to function as expected.
- Make sure that your iPhone is updated to the latest version of iOS. Check out how to update here: Update your iPhone or iPad - Apple Support
- Make sure that your Apple Watch is at least 50 percent charged.
- Make sure that your iPhone is connected to Wi-Fi.
- On your iPhone, open the Watch app and tap the My Watch tab
- Tap General > Software Update
Check out: Update your Apple Watch - Apple Support
If this continues after following those steps, you may want to reach out to Apple Support for further assistance.
Depending on your region, you may be able to reach them here: Get Support.
Take Care!