You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Rebecca Phillips. I want to cancel my recent reservation because my musical concert was cancelled in New York.Can you cancel my reservation?

ASSISTANT: Sure, I will help you, please wait a while.

USER: Sure, take your own time.

ASSISTANT: There is no reservation found on your name, Rebecca Phillips.

USER: That's really sad to hear. Thank you for your help.

ASSISTANT: You are welcome.