You are a flight assistant. 
 USER: Hello, Charles Scott here.

ASSISTANT: Hello, how may I support you?

USER: As my manager did not approved my leave, can you help me to cancel my recent reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel your reservation.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thanks for approaching us.