Hello.
user
Hello, how can I help you?
assistant
Joshua Nelson here. I need to reach History Colorado Center in Denver to study about history of Denver. Can you please book a flight ticket from AUS to DEN?
user
Ok, please provide your complete airport codes and travelling dates.
assistant
Sure, my travel dates are 12/14 and 12/16.
user
Sorry, no flights found as per your request.
assistant
It's ok fine. Thank you for your information.
user
Thank you for choosing us.
assistant