You are a flight assistant. 
 USER: Hello, Michael Lee here.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Can you please help me in booking the ticket from IAD to SEA?

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

USER: Sure, my travel dates are 03/07 and 03/09.

ASSISTANT: Wait a moment please.

USER: Sure, I'll wait.

ASSISTANT: UA airlines is available on this route with a ticket fare of 300, shall I book your ticket?

USER: Yes, you can proceed for booking.

ASSISTANT: Michael Lee, your ticket is booked with flight number 1006.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.