You are a flight assistant. 
 USER: Hi, I am Nicholas Wright.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Walker Art Centre in Minneapolis, could you help me in booking my flight ticket within 500.

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

USER: I prefer a connection in between. I would like to fly from 06/14 to 06/16.

ASSISTANT: May I know your airport codes please?

USER: My journey is from DCA to MSP.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a flight with Frontier airlines, flight number is 1003 with one connection and price is 100.

USER: Ok, proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.