Do you know Katie's phone number?
Speak as Kevin
Speak as Mike
Mike: I'm sorry, but I don't know her phone number.
Kevin: I really need to get in touch with her. What should I do?
Mike: You should call Jane and ask her for Katie's phone number. Jane and Katie are best friends, so Jane will definitely have Katie's number.
Kevin: I don't have Jane's number either.
Mike: Don't worry. I have Jane's number.
Kevin: Great. What is it?
Mike: It is 889-5353.
Kevin: Thanks so much. You are a lifesaver.