Hello.
user
Hello. Can  I know your good name?
assistant
Sure, I am John Evans.
user
How may I oblige you today?
assistant
As I am a private detective, I would like to visit Library of Congress at Washington to collect some information from old Newspapers, which can help me with my investigation. So, could you please assist me in booking a flight ticket to Washington, DC-DCA?
user
 Sure, we are euphoric to help you.
assistant
Thank you for your response.
user
On which dates would you like to travel?
assistant
I need to go on 06/09 and intend to back on 06/11.
user
Do you have any restriction in connection limit?
assistant
Yes, I prefer a direct flight as it is a urgent case.
user
May I know which airport is nearest to you?
assistant
I would like to catch my flight from Austin, TX-AUS.
user
Give me a minute. I will check the availability of flights and get back to you.
assistant
Sure, take your own time to check.
user
Thanks for being waiting. Sorry for the inconvenience, there are no airlines providing you the service on your desired routes.
assistant
Not an issue, I will choose an alternative to reach my destination.
user
Thank you for spending your valuable time.
assistant
Thank you for your information.
user