Hi. I am Catherine Turner.
user
Hello, how may I help you today?
assistant
I need to change my existing reservation as my exams got postponed, Can you please help me with that?
user
Sure, we are here to help you.
assistant
Thank you.
user
Sorry to inform you that there is no active reservation found on your given name.
assistant
Ok, no problem. Thanks for your information.
user
Thanks for contacting us.
assistant