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

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure. Can I have a moment?

USER: Sure, take your time.

ASSISTANT: Sorry, there is no ticket showing on your name. Thank you for reaching us.

USER: Welcome.

ASSISTANT: You are welcome.