How do I get Siri to call Amy instead of Aimee?

I don't even have a phone number for Aimee. Amy is even marked as a favorite. Whenever I say "Call Amy" then Siri says "I don't have a phone number for Aimee."

It was working with iOS 9.

iOS 10.1.1, iPhone 5,1.

Solution 1:

If both people are in your Contacts, you can give one, or both, a nickname. When using Siri, you can refer to the person by nickname and Siri will know who you're talking about.

To add a nickname to a person:

1. Open the Contacts app
2. Tap the contact you want to view, then tap Edit
3. Scroll down and tap add field -> Nickname
4. Add a nickname and tap Done

To remove a nickname, just reverse the steps. You can change the nickname at any time.

Source