Hello.
user
Hello. How may I aid 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, may I know your name?
assistant
My previous reservation has done with the name Amanda Lewis.
user
Please give me a moment to check your reservation status.
assistant
Sure, take your own time.
user
Sorry Lewis, no reservation is found by your name.
assistant
Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.
user
Thank you for reaching us.
assistant