You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

USER: I am Anthony Jackson. I want to cancel my recent ticket booking due to office work that my manager did not approve my leaves, so can you please cancel it?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Not a problem, thank you for the information.

ASSISTANT:  Thank you for availing us.