Hello,.
user
Hello, how can I help you?
assistant
I want to change an existing reservation. Can you help me with that?
user
Sure, may I please know your name?
assistant
Yes, I am Ronald Hernandez.
user
I am very sorry to inform you that there is no existing reservation found on your name. Sorry for the inconvenience.
assistant
Ok, No issue.
user
Thanks for contacting us.
assistant
Thank you.
user