You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you at this moment?

USER: Melissa Green here. I want to attend a Seminar in Los Angeles. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will aid you in booking flight ticket. Can you please mention your preferable travel dates for booking flight ticket?

USER: My travelling dates are from 02/28 to 03/01.

ASSISTANT: May I know your preferable airport code names for further process?

USER: My airport codes are from IAD to LAX.

ASSISTANT: Just give me a moment, I will check flight availability in this route.

USER: Ok, I will wait.

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

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1001.

USER: Thanks for helping me.

ASSISTANT: You are welcome Melissa Green.