Hello.
user
Hello, how may I assist you?
assistant
My planned trip was postponed so I want to change my reservation. Can you help me?
user
Sure, may I know your name please?
assistant
My name is Samuel Davis.
user
OK, please wait for a moment.
assistant
OK.
user
Sorry Samuel, there is no reservation found on your name to change your reservation.
assistant
OK, thank you for checking.
user
Thank you, for consulting us.
assistant