阅读对话，选择正确答案。

Kate: I find a pink fan. Do you know whose it is?

Ann: Sorry, I don't know.

Kate: Is that your fan, Lisa?

Lisa: No, it isn't. You can ask May. She looked for her fan everywhere.

Kate: May, is this your fan?

May: Let me see. Oh, it's not mine. Mine is blue. But I remember Amy has a pink fan.

Amy: Yes, it's my fan. Thanks, Kate. You helped me a lot.

May: Oh, but I still can't find my fan. Who can help me?