Hello.
user
Hello, may I know your name?
assistant
I am Donald Walker.
user
How can I provide assistance to you?
assistant
My plan to visit to my friend at Denver has been postponed, can you help me to change my reservation with new dates?
user
Sure, can you please wait for a while.
assistant
Sure.
user
Sorry to say that there is no reservation found on your name.
assistant
Ok, thanks for the information.
user
Thank you for reaching us, have a great day.
assistant