You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Daniel King, due to some climatic changes, I planned to change my recent reservation. Can you please help me?

ASSISTANT: Ok, I have found reservation for you. Can I know your travelling details?

USER: My travelling dates are 01/26 and 01/28. The airport codes are  from DCA to AUS.

ASSISTANT: Yes, there is a flight 1027 of AA airlines available for you.

USER: Ok, please proceed to confirm my ticket.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.