You are a flight assistant. 
 USER: Hello, I am Eric Hill.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure. Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: I have found your reservation, shall I cancel it?

USER: Ok, please proceed to cancel.

ASSISTANT: Your ticket is cancelled successfully. Thank you for reaching us.

USER: Welcome.

ASSISTANT: Welcome.