Hi, I am David Anderson.
Hello, how can I help you now?
My plan to visit my aunt's place got postponed, could you please help me in cancelling my flight ticket.
Sure, please wait for a moment while I check for the reservation.
Ok.
Thanks for the waiting, I found your reservation. Shall I proceed to cancel it?
Ok, proceed.
Ok, wait for a while. Your reservation has been cancelled.
Thanks for your help.
Thank you, have a nice day.