Hello.
user
Hello. How can I help you?
assistant
Due to change in my plans to visit Dallas, I would like to change my existing reservation. Can you help me with this?
user
Sure, I will help you. May I know your name please?
assistant
My previous reservation has done with the name Ryan Mitchell.
user
There is no reservation on your name in our database.
assistant
Ok, not an issue. May be something went wrong while booking the ticket previously. Thank you for providing information.
user
Thank you for choosing us.
assistant