You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid 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, please provide me your name.

USER: Virginia Lee here.

ASSISTANT: There is no reservation found with your name.

USER: No problem, Thank you.

ASSISTANT: Thank you.