You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Charles Robinson.

ASSISTANT: Charles, what kind of assistance you are looking for?

USER: I would like to cancel my reservation as I cannot travel because my project got extended till next year, can you please help me in cancelling my reservation?

ASSISTANT: Sure, I am glad to help you. Please give me a moment to check your ticket status in our website.

USER: Sure, I will wait for your reply.

ASSISTANT: Sorry Robinson, no reservation is available by your name.

USER: That's fine. Anyway, thank you for checking.

ASSISTANT: Thank you for approaching us, have a nice day.