Hello.
user
Hello. How can I assist you today?
assistant
I need to change my existing reservation, can you please help me in this issue.
user
Sure, may I know your name to check for the previous reservation?
assistant
Myself Robert Adams.
user
Please allow me a moment.
assistant
Please take your time.
user
Robert, there is no reservation found under your name.
assistant
Not an issue, thank you for searching the details.
user
You are welcome.
assistant