You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking to cancel my recent ticket because I have to attend an important meeting in the office. So, I am unable to catch the flight. Can you please help me to cancel the ticket?

ASSISTANT: Sure, I can help you.

USER: Thank you for accepting my request.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Dennis Green.

ASSISTANT: Sorry Dennis, there is no active reservation found with your name in our records.

USER: It's ok, not a problem with that one. Anyways thank you for searching the ticket status.

ASSISTANT: Most welcome.