You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nicholas Carter here.

ASSISTANT: How can I help you at this moment?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status.

USER: Ok, take your time.

ASSISTANT: I have found your reservation and cancelled successfully.

USER: Thank you for your kind help in cancelling of my ticket, have a great day.

ASSISTANT: You are welcome.