You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, I am here to help you.

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

ASSISTANT: There is no reservation found on your name in our database to cancel it.

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

ASSISTANT: Thank you for choosing us.

USER: You are welcome.