How to let Google Assistant access the information about you?

The personal results in Google Assistant allow the assistant to provide personalized responses based on your data and activities. When enabled, the assistant can offer tailored suggestions, reminders, and other responses specific to your preferences, habits, and past interactions.
To let Google Assistant access the information about you, please refer to the following steps:
1. Open the [Settings] APP;
2. Swipe down to find and select [Google];
3. Tap [All services];
4. Select [Search, Assistant & Voice];
5. Tap [Google Assistant];
6. Select [Personal results];
7. Turn on [Personal Results].
If you turn on [On headphones], you can hear personal results on your headphones when your pone is locked.
Note:
You can disable personal results if you're concerned about privacy or want to limit the amount of personal data Google Assistant accesses.