Having No Idea!

On the holiday, along white beach of Sihanouk Ville, people are swimming, and some of them are playing football including one General Manager of company. Eventually, GM sees one child running on sand because that child is the son of her driver. Then she calls and gives some money to him.

GM:
Do you know me?

Child:
Yes, I exactly do.

GM:
If you know me, please say. Who am I?

Child:
You are my father's friend because you always run along to work in my father's car everyday and every morning!

GM:
Having no utterable!