Why does the woman make the call?

M: York Police Station. Can I help you?
W: It’s about my daughter, Cathy. She went to school this morning and...
M: Just a moment, your name and address, please?
W: I’m Helen Brown, 32 Sun Road.
M: Thank you, Now Mrs. Brown, what exactly is the matter?
W: Well, my little daughter Cathy, left home this morning at about a quarter to nine. Then her teacher telephoned me about an hour ago and asked if Cathy was ill. I said, "No, why?" And then she said, "Well, Cathy hasn’t come to school yet." So I said I didn’t know where she was. The a I decided to ring you.
M: Quite fight, Perhaps she went to visit a friend? Have you asked your neighbors ?
W: Yes, I have. You rung all the neighbors and they haven’t seen her, and their children are all at school.
M: I see. Now, let’s have a few details. How old is Cathy?
W: She’s eight.
M: And what docs she look like?
W: She’s got fair hair, long fair hair with a ribbon in it, a red ribbon. Er, she’s got blue eyes.
M: And what’s she wearing?
W: She’s wearing a gray coat and brown shoes, red pants and a red sweater. Yes, that’s right.
M: We’ll do our best to find her, Mrs. Brown. I expect she’s just playing truant. Now you keep calm and we’ll telephone you as soon as we find her.
W: Thank you. Goodbye.
M: Goodbye, Mrs. Brown. And try not to worry.