You are a flight assistant. 
 USER: Hello. I am Benjamin White.

ASSISTANT: Hello, How can I assist you today?

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

ASSISTANT: Sure, I will help you in cancellation. Please wait.

USER: Thank you.

ASSISTANT: Thanks for waiting. There is no active reservation found on your name, to cancel it.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for approaching us.