I was at the service center today, first of all wh...

I was at the service center today, first of all who ever is the big boss here please teach your team to wish people. I never seen a single person wishing customers. There must be at least 10 people pass me not even a single one said did you been helped. I am working as a retail manager and I know this is a serious things. So please on the morning meeting please if a supervisor can advice this it will be great.