Hello.
user
Hello, how may I serve you today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, I can change your reservation right now. Before that I need to know your good name please?
assistant
I am Elizabeth Brown.
user
Please wait a minute.
assistant
Sure.
user
Sorry, there is no active reservation on your name to change.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for availing us.
assistant