You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Owing to an emergency I had to request for this cancellation, can you please help me to cancel my recent reservation?

ASSISTANT: Sure, please send your name to check it in our records.

USER: My name is Jacob Hill.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: You are welcome, have a nice day.