You are a flight assistant. 
 USER: Hello, I am Joseph Thompson.

ASSISTANT: Hello, how may I help you?

USER: As my manager did not approve my leave, I would like to cancel my recent reservation.

ASSISTANT: Thompson, I am here to help you. Let me check your reservation status in our database.

USER: Sure, take your time.

ASSISTANT: Thompson sorry to intimate, no reservation is available with your criteria.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you Thompson for contacting our agency.

USER: Welcome.