Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation due to postpone of my exam dates. Can you please help me with this?
user
Sure, please share your good name?
assistant
My name is Kevin Young.
user
Please wait for a while.
assistant
Sure.
user
Sorry, no reservation found on your given name.
assistant
No problem, thanks for your information.
user
Thank you for choosing us.
assistant