You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Myself Raymond Lewis. Due to some business meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, I am here to help you out.

USER: Ok, I will wait for your kind response.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Sorry  Raymond Lewis, there is no flight reservation on your name in our database.

USER: Not a big issue, anyhow thank you very much for your service.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.