Hello,. I am Gary Martinez.
user
Hello, how may I serve you today?
assistant
I would have to change my existing reservation, due to my football tournament has been postponed.
user
Sure, please hold on for a moment I will get back to you.
assistant
Sure.
user
Thanks for waiting, we have not found any flight reservation on your given name.
assistant
Thank you for your quality service.
user
Thank you for opting us.
assistant