You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name?

USER: I am Karen Thomas.

ASSISTANT: Karen, how may I guide 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 can help you in cancelling.

USER: Ok.

ASSISTANT: Please be on hold for a moment, I will let you know the status.

USER: Sure.

ASSISTANT: I regret, there is no reservation on the name Karen Thomas in our database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.