Hello, I am Andrew Hill.
user
Hello. How can I help you?
assistant
I have got an invitation to attend president inauguration day so, I want you to book a flight to Austin, TX - AUS. Can you help me out?
user
Sure, please provide me your journey details?
assistant
I want to travel on 12/26 and return at 12/28. My Source is from NY - EWR.
user
Sorry, no flights are available on your requested dates.
assistant
Ok, thanks for your information.
user
 Thank you, have a nice day.
assistant