You are a flight assistant. 
 USER: Hello, I am Debra Smith.

ASSISTANT: Hello, how may I help you today?

USER: As the meeting which I have scheduled to attend got postponed, I want you to cancel my reservation. Can you please help me?

ASSISTANT: Sure. Please, wait.

USER: Ok.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: It's ok, thank you for your information.

ASSISTANT: Thank you.