Hi.
user
Hello, how may I help you?
assistant
I want to change my existing reservation. Can you help me in that?
user
Sure, may I know your name please?
assistant
Edward Martinez.
user
Ok, please wait.
assistant
Sure.
user
Sorry, there is no active reservation found with your name in our records.
assistant
Ok, no problem. Thank you.
user
Most welcome.
assistant