You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Elizabeth Lee. I want to cancel my reservation as my meeting was got postponed.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a mean while.

USER: Ok, I will wait.

ASSISTANT: Sorry Lee, there is no reservation found as per your name to cancel your reservation in your database.

USER: That's not an issue. Thank you.

ASSISTANT: You are welcome.