Hello.
user
Hello. How can I assist you?
assistant
I need a direct flight to Washington, As I am a journalist I want to collect some data from library of congress. Can you do the reservation?
user
OK, may I know your boarding and deboarding points?
assistant
My airport codes are AUS-IAD.
user
Help me with your travel dates?
assistant
Dates are 08/25 and 08/27.
user
Ok, please wait.
assistant
Sure.
user
 Sorry, no  direct flights are available on your requested dates. May I know your name?
assistant
No problem, Thank you. Robert Clark here.
user
Thank you for availing us.
assistant