You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How may I help you?

USER: I am Cynthia White. 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: Please wait for a while.

USER: Sure.

ASSISTANT: No reservation found for cancelling your ticket.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks.