You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I would like to visit LAX to meet my cousin, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Sure, my travelling dates are Aug 16 and Aug 18.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I need a connecting flight.

ASSISTANT: May I know your airline preference for this trip?

USER: I am comfortable to travel in any airline.

ASSISTANT: Do you have any class preference?

USER: My class preference is economy.

ASSISTANT: Do you have any specific depart and arrival timings for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Richard Roberts.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 0:00 hours and arrives at 0:00 hours, shall I book your ticket in this flight?

USER: Ok, please book.

ASSISTANT: Richard Roberts, your ticket is booked in economy class of flight number 1003.

USER: Thank you for your help.

ASSISTANT: You are welcome and have a safe journey.