You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approved my leaves, so can you please cancel it?

ASSISTANT: Sure, I am mirthful to help you with that cancel reservation. May I know your name please?

USER: Gregory Evans here.

ASSISTANT: I have found your reservation and I successfully cancel your reservation with the name Gregory Evans .

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.