You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Nancy Wilson.

ASSISTANT: How can I help you at this moment?

USER: Can help me to book a flight from LAX to DCA?

ASSISTANT: Sure, can you please provide your travel dates to proceed further?

USER: Ok, my travel dates are 04/23. And return date is 04/25.

ASSISTANT: Southwest airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Please book it.

ASSISTANT: Nancy Wilson, your ticket is booked with flight number 1010.

USER: Thank you for your assistance.

ASSISTANT: Thank you, have a safe journey.