You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Christine Turner. I want to cancel my recent  reservation due to office work that my manager did not approved my leaves. Can you please cancel it?

ASSISTANT: Sure, let me check the status and revert you.

USER: Thank you.

ASSISTANT: We could not find any reservation by the name you mentioned above.

USER: Fine, thank you for your kind information.

ASSISTANT: Thank you for reaching us.