You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Owing to an emergency I need to cancel my reservation, can you please help me in cancellation?

ASSISTANT: Sure, please provide me your name?

USER: I am Paul Lee.

ASSISTANT: Please wait I will let you know.

USER: Ok.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: No issues, Thank you.

ASSISTANT: Thank you for opting us.