Hello.
Hello. How can I assist you now?
I am Angela Rodriguez. Can you please help me in cancelling my flight ticket?
Sure, I will help you with that.
Thank you. Sure, I will wait for your response.
Please wait a moment. Sorry Angela Rodriguez, no reservation has found  under your name to cancel.
Ok, no problem with that one. I think it is not booked properly. Thank you for your help.
Thank you for choosing us, have a good day.