Hello.
user
Hello, how may I help you today?
assistant
I would like to change my flight reservation as my trip got postponed, can you please help me?
user
Sure, I am here to help you with this.
assistant
Thank you.
user
May I know your good name please?
assistant
I am Donna Nelson.
user
Ok, please wait for a moment.
assistant
Sure.
user
Sorry Nelson, there is no reservation found as per your name to change it.
assistant
That's ok, thank you for checking.
user
You are welcome.
assistant