Hi.
user
Hello, how can I help you?
assistant
I am Brandon Campbell. As my exam is postponed, I need to change my existing reservation. Can you help me?
user
Ok, can you give me a minute please?
assistant
Sure, take your time.
user
Brandon Campbell, sorry to inform you there is no reservation found.
assistant
No issue, thank you for your time.
user
Have a nice day.
assistant