Hi, I am Carolyn Roberts.
user
Hello, how may I aid you?
assistant
Owing to an emergency, my planned trip to Denver with friends has been postponed. So I want you to change my existing reservation?
user
Sure, please wait for a while.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
Ok, no issues. Thank you for your help.
user
Thank you for opting us.
assistant