Hello. I am John Brown.
user
Hello, how can I help you?
assistant
Can you help me with changing my reservation to new travelling dates?
user
Sure, please wait for a moment.
assistant
Ok, take your time to get my reservation status.
user
Sorry to say that, there was no reservation found with your given name.
assistant
It's ok, thanks for checking my reservation status.
user
Thank you for opting us.
assistant