Hello. I am Nancy Williams.
user
Hello, how can I assist you today?
assistant
I need to change my existing reservation, as my exam scheduled got postponed. Please help me in changing?
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry to say that, no reservation was found with your good name.
assistant
Ok, no issues. Thank you for your help.
user
Thank you for reaching us.
assistant