Hello.
user
Hello, how may I help you today?
assistant
Myself Timothy Lopez. I want to change my existing reservation, can you help me in that?
user
Sure, I am here to help you.
assistant
Thank you.
user
Sorry Lopez, there is no reservation found as per your name to change your reservation.
assistant
That's ok, no problem. Thank you for the information.
user
You are welcome.
assistant