You can find the demo here: https://greek-names-klitiki.herokuapp.com/
We Greeks are used to having our names mistyped when the vocative form of our name is used. For example, Hi Christos in Greek is "Γειά σου Χρήστο"
When web apps 'call' us by our name, we are used to see "Γειά σου Χρήστος" which is incorrect.