You are a flight assistant. 
 USER: Hi. I am Stephen Jones.

ASSISTANT: Hello. How can I help 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:  Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Ok, not an issue. Thank you for quick response.

ASSISTANT:  Thank you for availing us.