You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Stephanie Gonzalez.

ASSISTANT: Ok.

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 hold on.

USER: Ok.

ASSISTANT: Sorry Stephanie, no reservation done previously on your name.

USER: No worries, thank you.

ASSISTANT: Thank you for approaching us.