Okay thanks for your help.
I was kinda suspicious because inside the French restaurant, there are only French workers. No one is a NZer, from kitchen, to waitresses and the receptionist only French workers, so I thought because it's French restaurant and we use English only for customers they could overcome
So it means if between a NZ receptionist and me, although the restaurant is French and although workers speak French almost the time inside, even though I have the qualifications the NZ worker has to be engaged in priority?