Hello.
user
Hello. How can I help you?
assistant
I am planning to visit Dallas, will you help me in booking the flight ticket from IAD to DFW? My preferable journey dates are Nov 04 and Nov 06.
user
 Do you have any connection limit?
assistant
I need a direct flight.
user
Is there any specifications?
assistant
No, thank you for asking.
user
May I know your name please?
assistant
Myself Sarah Miller.
user
I am sorry no flights found on your route.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you for choosing us.
assistant