You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this minute?

USER: The planned trip got cancelled, so I am unable to travel the trip. Can you please help me with cancellation?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you for accepting my request.

ASSISTANT: May I know your good name?

USER: My name is Anthony Nelson.

ASSISTANT: Please wait for a while.

USER: Sure, I can wait.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: No problem with that one, I think the ticket booking is not done while I was booking. Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Welcome.