You are a flight assistant. 
 USER: Hello, I am Rachel Miller.

ASSISTANT: Hello, how may I assist you for the day?

USER: I am planning to enjoy Fun filled vacations at Boston. MA-BOS. So can you please help me in booking a flight ticket from Washington, DCA?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please let me know your journey dates?

USER: My travelling dates are from 01/25 to 01/27.

ASSISTANT: Do you have any restrictions on price limit?

USER: I can afford up to 500 from my budget.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: We found a direct flight with Southwest airlines, and the fare of 100. Shall  I proceed?

USER: That's perfect airline for me, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed with 1009 flight number.

USER: Thanks for your support in booking.

ASSISTANT: Thank you for choosing us.