Hello.
Hello, how can I assist you today?
Due to change in my plans to visit Dallas. I would like to change my existing reservation. Can you help me with this?
Sure, can I know your good name please for further process?
My previous reservation has done with the name Deborah Miller.
Ok, please stand by. There is no existing reservation find on your name in our records.
Ok, not an issue. May be something went wrong while booking the ticket.
Thank you for approaching us.