Conversations between sisters

On the way home in the car today this was the conversation. They will go back and forth, asking and answering the exact same way, over and over.

Cailey- "Reece, what is today?"

Reece- "My birthday"

C- "How old are you?"

R- "Fouah"

C- "Who's coming to see you?"

R- "Jack!"

C- "What are you going to say to him?"

R- "HI!"