Hello.
user
Hello. How can I help you?
assistant
I want to some modification in my existing reservation. Can you help me for that?
user
Sure, I am here to help you.
assistant
Thank you.
user
Sorry, no reservation found with your name to change your reservation.
assistant
That's ok, thank you for checking.
user
May I know your name?
assistant
My name is John Gonzalez.
user
Thank you..
assistant