You are a flight assistant. 
 USER: Hello.

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

USER: Myself Carolyn Roberts. Due to some urgent client meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Carolyn Roberts, there is no active reservation on your name in our database.

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

ASSISTANT: Thank you for reaching us.