You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Hill.

ASSISTANT: How can I help you at this moment?

USER: I have to attend a business conference meeting at Angeles. Can you please help me in booking the ticket from IAD to LAX?

ASSISTANT: Sure, can you please mention your preferable travel dates for booking flight ticket?

USER: I am willing to travel on 08/02 and again I will retrieve on 08/04.

ASSISTANT: May I know your name for further process? Ok, please wait a moment, I will check flight availability in this route.

USER: Sure.

ASSISTANT: There is a flight available in this route as per your requested dates, airline is AA and connection limit of this airline is 1 with minimum fare of 100. Are you comfortable with this flight?

USER: Yes, I think that can work for me. Please proceed for booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1021.

USER: Thank you very much for reserving the ticket.

ASSISTANT: You are welcome Alexander Hill.