You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, I am here to help you with this. May I know your name please?

USER: Thomas Allen here.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

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

USER: No problem, Thanks for the information.

ASSISTANT: You are welcome.