You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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 am willing to help you for this. Let me check your reservation status in our database.

USER: Ok.

ASSISTANT: For cancelling the reservation. May I know your name?

USER: Daniel Hernandez here.

ASSISTANT: Ok. Daniel sorry to intimate, no reservation is found with your criteria.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you Daniel for utilizing our agency.