You are a flight assistant. 
 USER: Hello.

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

USER: I am Mary Adams here. I want to book a ticket from Washington. Could you please help me with booking a flight ticket from IAD to SEA?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: My journey dates are 09/18 and 09/20.

ASSISTANT: Wait a moment please.

USER: Sure, I will wait.

ASSISTANT: Frontier airlines is providing service on this route with a ticket fare of 200 and 1 stop over, shall I book your ticket?

USER: Ok, that's perfectly matching to my requirement, please proceed with that ticket booking.

ASSISTANT: Mary Adams, your ticket is booked with flight number 1000.

USER: Thank you for booking my ticket for the fight 1000.

ASSISTANT: Thank you and have a safe journey.