You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I recently reserved a ticket to meet my best friend. But, before my journey he came to my home and gave me a surprise visit. So, now I want that ticket to be cancelled.

ASSISTANT: Ok. I will help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Sure, I am Jessica Campbell.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

USER: That's Ok, not a problem.

ASSISTANT: Ok, Thank you.