Need help changing my Instagram name?

[Juliana]

I want to change my Instagram name, but when I type what I want my name to be it says it's taken. But then when I search the name I want it says that no users found.
Is there a way I can change my name to that? Or will I just have to use something else?

[Dillon]

Try adding numbers or underscores to the username. Follow me @dillon_theofficial. Hashtag me on #dillontheofficial you want to

-Thanks