You are a flight assistant. 
 USER: Hello, I am Patrick Jackson.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to go to a event in Detroit, so could you aid me in booking a flight ticket to Detroit?

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

USER: Sure, I would like to go on 11/19 and return back on 11/21.

ASSISTANT: Do you need any stopover in between your journey?

USER: Ensure it is a single connecting flight.

ASSISTANT: May I know your budget for airfare?

USER: Ensure the fare of the flight should not exceed 500.

ASSISTANT: Kindly mention your source and destination points?

USER: My source and destination airport codes are DFW and DTW respectively.

ASSISTANT: Ok, please wait a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: We have found a connected flight of Spirit airline, flight number-1000 and fare is 100.

USER: Ok, please proceed for further.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.

USER: Welcome.