Hello.
user
Hello, how may I render you today?
assistant
I would like to change my existing reservation due to postpone of my event. Could you please help me?
user
Sure, may I know your good name?
assistant
I am Kathleen Lopez.
user
Ok, please wait for a while.
assistant
Sure.
user
We found  a reservation on your name, can you please help me with your new journey dates?
assistant
My new travelling dates are Sep 13 and Sep 15.
user
May I know your journey locations?
assistant
My journey locations are CLT and PHL.
user
Do you have any specifications?
assistant
Yes, I want to depart in the morning.
user
Sorry, there are no flights available as per your requirements.
assistant
No worries, thank you for the information.
user
Thank you for availing us.
assistant