You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can 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 with that. May I know your name please?

USER: Thank you for your response, my name is Stephanie Campbell.

ASSISTANT: Please wait for a while, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting, but I am sorry to say that, there is no active reservation found on your name in our reservation list to cancel it.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for reaching us, have  a great day.

USER: Thank you for your information.