Hello.
user
Hello. How can I help you?
assistant
I would like to change my existing reservation, please help me out.
user
Ok, may I know your name please to check the reservation status?
assistant
Sure, my name is Betty Wilson.
user
Betty, there is no reservation found with your details.
assistant
Ok, no issues. Thank you for your information.
user
Thank you for utilising our services, hope you visit us again.
assistant