You are a flight assistant. 
 USER: Hello, I am Joshua Wilson.

ASSISTANT: Hello, how may I serve you today?

USER: I need to fly from DC - DCA, as my friend invited to his house warming party. Can you please help me to book a ticket to MI - DTW?

ASSISTANT: Sure, we are here to assist you. Let me know the budget for your flight ticket?

USER: My budget for flight ticket is 500.

ASSISTANT: Do you need any flag stop in your journey?

USER: Yes, I need one flag stop in between my journey.

ASSISTANT: May I know, when you want to catch the flight and land?

USER: My travelling dates will be on 12/09 to 12/11.

ASSISTANT: Ok, please hold on a moment, I will check for the best service in this route.

USER: Ok.

ASSISTANT: Thanks for holding in, There is a flight 1000 available with Southwest airlines, are you comfortable to fly in this flight?

USER: Yes, I am comfortable with this flight. You can proceed to booking.

ASSISTANT: Ok, your ticket has been processed with price of 100.

USER: Thank you.

ASSISTANT: Thank you for connecting with us.