Hello.
user
Hello, how can I help you?
assistant
I would like to change my recent reservation, will you help me with that?
user
Sure, I am here to help you. May I know your name please?
assistant
Thank you for accepting my request, myself James Roberts.
user
Ok, please wait a minute.
assistant
Sure, I will wait.
user
Thank you for your time, sorry no reservation found on your name.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for reaching us, have a  nice day.
assistant