Hello.
Hello, may I know your name?
I am Mark Smith, I planned to visit Atlanta for my vacation but I changed my mind and I will visit Houston. Can you change my reservation?
Sure, I will here to help you. Give me a minute, let me check the reservation list.
Sure.
Sorry, I didn't found any reservation on your name.
Ok, thanks for the information.
Thank you for reaching us. Have a safe day.