Hello.
user
Hello, how may I help you?
assistant
Can you please change my existing reservation?
user
Sure, may I know your name please?
assistant
Sure, I am John Wright.
user
Ok, please wait for a moment.
assistant
Ok, I will wait.
user
Sorry, there was no reservation found with your given name.
assistant
Ok, Thank you.
user
Thank you for opting us.
assistant