Hello.
user
Hello, how may I assist you?
assistant
I am Daniel King, due to some climatic changes, I planned to change my recent reservation. Can you please help me?
user
Ok, I have found reservation for you. Can I know your travelling details?
assistant
My travelling dates are 01/26 and 01/28. The airport codes are  from DCA to AUS.
user
Yes, there is a flight 1027 of AA airlines available for you.
assistant
Ok, please proceed to confirm my ticket.
user
Your ticket is booked successfully.
assistant
Thank you for your help.
user
Thank you for reaching us.
assistant