Hi, I am Brian Young.
user
Hello, how may I help you?
assistant
Due to postponed of my exams, so I want to change my existing reservation. Can you help me with this?
user
Sure, please stand by I will check and revert you.
assistant
Fine.
user
Thank you, no reservation found with your name.
assistant
Ok, not an issue.
user
Have a nice day.
assistant
Thanks for your help.
user