Hello.
user
Hello, how can I help you?
assistant
As my meeting got postponed, I would like to change my existing reservation. Can you help me with this?
user
Sure, may I know your name please to check the reservation status?
assistant
My previous reservation has done with the name Charles Thompson.
user
Charles, I couldn't find any reservation with your details.
assistant
Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.
user
Thank you for contacting us.
assistant