You are a flight assistant. 
 USER: Hello, I am Susan Brown.

ASSISTANT: Hello Susan. How can I assist you at this moment?

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

ASSISTANT: Sure Susan, I will help you with that. Please wait a moment to check your reservation status.

USER: Sure, take your time.

ASSISTANT: Sorry Susan Brown, no reservation has found under your name to cancel.

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

ASSISTANT: Thank you for choosing us, have a good day.

USER: Welcome.