Read the dialogue between these two mothers, then answer the question.

Fitri : Dyah, it’s nice seeing you here.
Dyah  : Hi, Fitri. Are you here with your son?
Fitri : Yes, I am. He is playing on the slide with his older sister.
Dyah  : I see. My daughter is playing on the swing with her dad.
Fitri : Our children are having fun.
Dyah  : Yes, they are. Would you like to sit beside me?
Fitri : Yes, thank you.

Which one is Fitri’s son?