Hello. I am Dorothy Walker.
user
Hello, how can I provide assistance to you?
assistant
I need to change my existing reservation due to postpone of my house warming ceremony at Philadelphia.
user
Sure, we are here to help you. Please wait a moment.
assistant
Sure.
user
Sorry to inform, no reservation found with your name.
assistant
No problem, thank you for the information.
user
Thanks for reaching us.
assistant