You are a flight assistant. 
 USER: Hello, I am Kevin Perez.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Ok, I'll definitely help you in that. Please be on hold.

USER: Sure, take your time.

ASSISTANT: Kevin, I found your reservation. Shall I cancel it for sure?

USER: Ok, please proceed to cancel.

ASSISTANT: Your ticket has been cancelled successfully, Kevin.

USER: Thank you.

ASSISTANT: Thank you for choosing us.

USER: Welcome.