You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to visit Boston, please book a ticket from IAD to BOS.

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: Sure, my planned departure and return travel dates are 17th and 19th of Aug.

ASSISTANT: May I know your name please to proceed further?

USER: Yes, my name is Brenda Evans.

ASSISTANT: Do you need a connecting flight?

USER: I prefer single connected flight.

ASSISTANT: Do you have any other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: I found an economy class in American Airlines with fare 100 and it has single connection. Can I book your ticket?

USER: That's fine, go for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1018.

USER: Thank you so much for your help.

ASSISTANT: Thank you for approaching us.