You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: May I know your travel dates?

USER: I would like to fly on Sept 06 and return on Sept 08.

ASSISTANT: Do you have any connecting flight preferences?

USER: I need a single connection.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: Myself Elizabeth Collins.

ASSISTANT: I found a flight in economy class, Delta Airlines is providing the connecting flight on this route and the fare of 100.

USER: You can proceed to booking.

ASSISTANT: Your reservation is confirmed for the flight 1012.

USER: Thank you.

ASSISTANT: Thank you for reaching us.