You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Lewis.

ASSISTANT: How  can I assist you?

USER: I want to cancel my recent reservation due to an emergency work, can you please help me in that?

ASSISTANT: Sure, I can help you. Give me a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to cancel it.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.