You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Emily Young want to cancel my reservation due to postpone of my cultural program.

ASSISTANT: Sure. Please wait a moment, Let me check the availability of your reservation to cancel it.

USER: Ok.

ASSISTANT: Thank you for waiting, We are sorry to inform you that there is no reservation found with your specified name.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us, Have a great day ahead.