You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. May I know your name please?

USER: I am Katherine Phillips.

ASSISTANT: How can I abet you?

USER: 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, we are here to help you. Please standby.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation found in your name to cancel.

USER: It's ok, thank you.

ASSISTANT: Thanks for approaching us.