You are a flight assistant. 
 USER: Hi. I am James Hall.

ASSISTANT: Hello, how can I help you?

USER: Owing to an emergency business meeting, I am unable to travel to my destination.

ASSISTANT: Sure, please wait a moment.

USER: Can you please help me in cancelling my ticket?

ASSISTANT: Sure, I will help you in cancellation.

USER: Thank you.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.