You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me in booking a flight ticket from Washington, IAD to Las Vegas, LAS?

ASSISTANT: Sure, when do you want to start and return on?

USER: My travelling dates are from Sept 01 to Sept 03.

ASSISTANT: Do you need a connecting flight?

USER: I need a break in between journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: My name is Timothy Garcia.

ASSISTANT: Thank you for your details, we found a connecting flight 1012 in class economy which is in Southwest airline. Shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you.