Hello.
Hello, how can I guide you for today?
Due to change in my plans to visit Dallas, I would like to change my existing reservation. Can you help me with this?
May I know your name?
My previous reservation has done with the name Nancy Nelson.
Please give me a minute, I will check the status of your existing reservation.
Sure, take your own time.
Sorry, there is no reservation found under your name.
Ok, not an issue. May be something went wrong while booking the ticket.
Thank you for contacting us, have a nice day.