Hello, I am Gregory Garcia.
user
Hello, how can I help you today?
assistant
My exams has been postponed. I want to change my existing reservation. Can you please help me with it?
user
Sure, please wait I will get back to you.
assistant
Ok.
user
Thanks for waiting, no reservation found with your name.
assistant
Ok, not a problem. Thank you.
user
Thanks for choosing us.
assistant