Hello.
user
Hello.
assistant
Myself Robert Miller.
user
How may I assist you?
assistant
I need to change my existing reservation, can you please help me out?
user
Sure, I am here to help you out. Robert Miller, we regret to inform you that there is no reservation found on your name in our records.
assistant
That's ok, thank you for searching the details.
user
Thank you for reaching us.
assistant