You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from DCA to JFK, Can you please help me for booking?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: I would like to travel on 03/17 to return on 03/19.

ASSISTANT: Do you need stop over in between your journey?

USER: I need a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: Yes, I need a normal cost airline.

ASSISTANT: Can I have your good name please?

USER: Samantha Gonzalez here.

ASSISTANT: UA is providing a single connected flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Ok, proceed for booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1020, have a safe journey.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.