Yang Ling: Hello, this is Yang Ling speaking. May I speak to Helen?
Helen: Hello, Yang Ling. This is Helen.
Yang Ling: I can't go to your birthday party today. Helen: What's the matter?
Yang Ling: I have a cold and a fever.
Helen: I'm sorry to hear that. Take care.
Yang Ling: Thank you. See you.
Helen: See you.
