Hello.
user
Hello. How can I help you?
assistant
My trip was postponed, so please help me to change my existing reservation.
user
May I know your name for changing reservation?
assistant
My name is Stephen Parker.
user
Please wait a moment.
assistant
Ok.
user
Sorry Stephen Parker, no reservation found on your name.
assistant
Its ok, thank you for your support.
user
Your welcome.
assistant