You are a flight assistant. 
 USER: Hi, I am Linda White.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit National Building Museum in Washington, could you help me in booking my flight ticket below the price of 200.

ASSISTANT: Sure, can you please provide your journey dates?

USER: Sure , my travelling dates are from 11/18 to 11/20.

ASSISTANT: May I know the airport codes?

USER: I would lie to fly from NY-EWR to DC-DCA. And my connection limit is 1.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a flight with Southwest airlines. Flight number is 1008 with one connection and price is 200.

USER: Ok, proceed with my booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.