Hello,.
user
Hello.
assistant
I am Emily Anderson.
user
 How can I assist you?
assistant
I need to change my existing reservation, due to postpone of my trip with friends. Can you please help me out?
user
Sure, please wait I will revert you in a moment.
assistant
Sure.
user
Sorry to notify you that no reservation was found on your name in our data base.
assistant
Ok, not an issue. Thank you.
user
Thank you for availing us.
assistant