Hello.
Hello. How may I guide you today?
Can you please help me to cancel my  previous ticket? Because I had some other work so that I have cancelled the trip.
Sure, I will help you with that.
Thank you.
May I know your name please?
My name is Helen Campbell.
I am sorry to say that there is no reservation found under your name.
It's ok, not a problem with that. Thank you for your help.
Thank you for reaching us, have a great day.