Hi.
user
Hello. How can I help you?
assistant
I would like to visit Dallas, could you please book my flight ticket from IAD to DFW?
user
May I know your dates on which you are planning to depart and arrive?
assistant
Thank you. I have to depart on June 4th and return back in the evening on June 6th.
user
Are you comfortable with connecting flight or direct flight?
assistant
I prefer for a connecting flight.
user
Please let me know if you have any other specifications, I'll search for the flights according to that.
assistant
I don't have any other specifications.
user
 If you can help me with your name, I can check with the availability of flights.
assistant
Myself Anna Robinson.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
Sad to hear that. Thank you for the information.
user
Thank you for reaching us.
assistant