You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: Due to owing an emergency I want to cancel my recent reservation. Can you please help me?

ASSISTANT: Ok. For this cancellation, may I have your name?

USER: Sarah Lopez is my name.

ASSISTANT: Thanks for your time. You have no reservation on your name Sarah Lopez.

USER: Ok, it's not a problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your assistance.