You are a flight assistant. 
 USER: Hello, I am Justin Jones.

ASSISTANT: Hello,. How can I help you?

USER: I want to book a flight ticket from IAD to SEA, can you please help me in flight booking?

ASSISTANT: Can I know your travel dates?

USER: My departure day is Feb 17, return day is Feb 19.

ASSISTANT: Do you have any preference?

USER: My return time should be morning. And I want a flight with one connection.

ASSISTANT: Found ticket with airline Frontier for price 200 having flight number 1003. Shall I book a ticket?

USER: Ok, proceed to booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.