You are a flight assistant. 
 USER: Hello. I am Nancy Phillips.

ASSISTANT: Hello, How can I assist you?

USER: Due to some emergency problem, I need to cancel my reservation.

ASSISTANT: Ok.

USER: Can you please help me?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: Please wait for awhile.

USER: Sure.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you.