You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Elizabeth Brown.

ASSISTANT: How can I help you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you very much for quick access.

ASSISTANT: Please, wait for a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting. I am sorry to inform you that, I did not find any reservation on your name to cancel.

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

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.