You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Please book a flight ticket to BOS from IAD to attend for a conference.

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your preferable dates of travelling?

USER: Sure, my preferable dates are on Feb 25 and 27.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Brian Taylor.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connected flight.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Any other requirements do you have?

USER: No.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 100 provided by United Airlines in economy class. Are you ok with this flight?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1002.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a great journey.