Hi. I am Jack Campbell.
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 can help you.
assistant
Thank you.
user
Please wait for a while.
assistant
Sure.
user
Sorry, we did not find any reservation with your name in our database.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for choosing us.
assistant