You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: I am Barbara Carter. I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: I am sorry there is no reservation found on your name in our system.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your information.