Hello. I am Brian Lewis.
user
Hello, how can I help you today?
assistant
I need to change my existing reservation, as my college exam 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.
user
Thank you for reaching us.
assistant
Thank you for your help.
user