You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I guide you?

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

ASSISTANT: Sure, please provide me your name.

USER: I am Katherine Harris.

ASSISTANT: There is no reservation found with your name.

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

ASSISTANT: Have a good day.