You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Please assist me in booking a flight ticket from LAS to IAD.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are from Aug 22nd to Aug 24th.

ASSISTANT: May I know your name?

USER: I am David Hill.

ASSISTANT: Do you have any requirements?

USER: Yes, I want a stopover in between my journey.

ASSISTANT: There is a connecting flight 1004 of United Airlines, can I proceed?

USER: Yes, please proceed.

ASSISTANT: Your booking is done in economy class.

USER: Thank you.

ASSISTANT: You are welcome.