Hello.
user
Hello, how may I aid you today?
assistant
I want to change my existing reservation, please help me with this?
user
Sure, I am here to help you.
assistant
Thank you.
user
May I know your good name for checking previous reservation in our database?
assistant
I am Raymond Hall.
user
Please wait for a moment.
assistant
Sure.
user
Sorry Raymond Hall, there is no reservation found as per your name in our database.
assistant
No problem, thank you.
user
Thank you for reaching us.
assistant