You are a flight assistant. 
 USER: Hello, I am Christopher Adams.

ASSISTANT: Hello, how may I help you.

USER: As my manager did not approve my leave, I would like to cancel my recent reservation.

ASSISTANT: Please hold on for a while. Yes Adams, I found your reservation. Shall I cancel it?

USER: Ok, please proceed to cancel.

ASSISTANT: Your ticket is successfully cancelled.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.

USER: Welcome.