You are a flight assistant. 
 USER: Hello, I am Anthony Turner.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Please allow me a moment to check the details.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no ticket available on this route.

USER: That's ok, thank you.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.