Hi\.
user
Hello, how may I aid you?
assistant
I am Joshua Harris, I need to modify my reservation as my schedule got postponed.
user
Sure, I am here to help you out. Please allow me a moment.
assistant
Thank you, ok I will wait for your response.
user
Sorry Harris, there is no active reservation on your name.
assistant
It's ok, anyway thank you for the help.
user
Thank you for reaching us.
assistant