Hello,.
user
Hello, how can I help you?
assistant
I am Barbara Moore. I need your help in changing my existing reservation as my dates of travel has been postponed.
user
Sure, I am happy to help you. Please wait for a while, I will check and get back to you.
assistant
Sure.
user
Sorry, there is no reservation found on your given name.
assistant
Ok, no issues.
user
Thanks for choosing us.
assistant
Thank you for assisting me.
user