Hello.
user
Hello, how can I aid you for the day?
assistant
I just want to change my existing reservation, due to my trip with my friends has been postponed. Can you please help me to make some modifications?
user
Sure, may I know your name?
assistant
Sure, my name is Nancy Roberts.
user
Sorry, there is no reservation found on your name to change.
assistant
Ok, thanks for your information.
user
Thank you for contacting us.
assistant