Hello, Kenneth Taylor here.
user
Hello Kenneth. How can I help you?
assistant
Co-incidentally, I have booked my tickets with wrong dates. Can you change this?
user
OK sure, can I know your name?
assistant
I already tell you.
user
Sorry, give me a moment.
assistant
Sure.
user
Sorry Kenneth, I didn't find any reservation regarding your details.
assistant
It's OK. Thank you.
user