Hello.
Hello. How can I help you today?
Due to some problems my trip was cancelled so can you please cancel my flight ticket?
Sure, I am here to help you with that. May I know your name please?
Thank you for your response, my name is Stephanie Campbell.
Please wait for a while, let me check your previous reservation status.
Ok.
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.
Oh! It's ok, no problem.
Thank you for reaching us, have  a great day.