You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you?

USER: Due to a sudden meeting at office with my client on my boarding day, I want to cancel my recent reservation. Can you help me with cancellation?

ASSISTANT: Sure, I am here to help you. May I know your good name please?

USER: Nicholas Garcia is my name.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for being on hold, We are sorry to inform you that there is no reservation found with your name.

USER: No issues, thanks for your service.

ASSISTANT: Thank you for availing us, have a good day.