Hi,.
user
Hello, What can I do for you?
assistant
I want to change my existing reservation as my exam got rescheduled. Please help me out.
user
Sure, May I know your name?
assistant
I am Ronald White.
user
Please give a minute.
assistant
Ok.
user
Sorry, No reservation found on your name. Thank you for availing us.
assistant
Thank you for your response.
user