You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support 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, may I know your name? Please wait for a minute.

USER: My name is Nancy Garcia. Ok.

ASSISTANT: I am sorry to inform that there is no reservation found with your name.

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

ASSISTANT: Thank you for reaching us.