You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I want to book a connecting flight ticket to attend an cultural fest which is going to held at DC. Can you help me?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Jan 24th and 26th are my trip dates.

ASSISTANT: Please provide your airport codes.

USER: DFW and IAD are my airport codes.

ASSISTANT: Do you have any preferences about class?

USER: No.

ASSISTANT: Do you have any other preferences about airline cost?

USER: No,  I am comfortable with above mentioned details.

ASSISTANT: Please mention your name.

USER: Jerry Lewis.

ASSISTANT: The Southwest airlines providing an economy class flight with price 100 and the connecting flight. Shall I confirm your ticket?

USER: That's Perfect, You can proceed it for booking.

ASSISTANT: Your ticket is booked. The flight number is 1010.

USER: Thank you for your help in booking the flight ticket.

ASSISTANT: Welcome, have a great day.