You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for your response.

ASSISTANT: May I know your good name please?

USER: Sure, my name is John Thomas.

ASSISTANT: Please wait for a mean while.

USER: Ok.

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

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: You are welcome.