Hello.
Hello, how can I help you today?
I would like to change my flight reservation as my trip got postponed, can you please help me?
Let me know your name to check your reservation?
I am Patrick Walker.
Ok, please wait a moment.
Sure, take your own time.
Thank you for waiting. I have checked in reservation list to change your ticket, but could not find any reservation with your name.
That's ok, thank you for giving information.
Thank you for choosing us.