"Ni haash yinilyé?"
Translation:What is your name?
*Niísh 'éí haanílyé? It is used to sound less forward. Going up to someone and asking "Haanílyé?" sounds very forward and can sound rude in certain situations. Yes, it may seem that "ni" is redundant (which it is) but in this case it helps to sound less direct and confrontation and more polite.