Hi, I am Dennis Mitchell.
user
Hello, how may I serve you today?
assistant
I need to change my recent reservation due to postpone of my event which is organised at Denver. Could you please help me in doing that?
user
Sure, we are pleased to help you.
assistant
Ok.
user
Please wait a moment.
assistant
Sure.
user
Mitchell, unfortunately we could not find your reservation in our database. Thanks so much for choosing us.
assistant
No problem, thank you for your information.
user