You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you aid me to book a flight ticket from LAS to IAD?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My trip dates are Mar 3 and Mar 5 respectively.

ASSISTANT: May I know your name?

USER: Brian Gonzalez here.

ASSISTANT: Do you need any connections between your trip?

USER: I prefer for connecting flight to travel.

ASSISTANT: Do you need any other requirements?

USER: I choose economy class for my journey.

ASSISTANT: As per your requirements there is a Southwest airlines, flight number:1005 is going on your way with single connection and price:100. Is that Ok for you?

USER: Please proceed for booking.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.