Hi.
user
Hello. How may I aid you?
assistant
Help me in booking a flight from IAD to DCA?
user
 To proceed further, can I have your name please?
assistant
I am Angara Garcia.
user
Please let me know if you have any class preference.
assistant
No.
user
May I know your journey dates?
assistant
I like to travel on Dec 06 to 08.
user
 Is there any other requirements for this trip to met with, so that I can find a suitable flight for your journey?
assistant
I prefer travelling in single connection flight.
user
 There is a connecting flight-1009 in business class, shall I proceed?
assistant
Proceed for booking.
user
Ok, booking is done on Southwest airlines.
assistant
Thank you.
user
Welcome Angara Garcia.
assistant