You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me in booking a flight ticket from IAD to SEA?

ASSISTANT: Sure, I am here to help you. Can you please tell me your travel dates?

USER: Sure, I would like to go on Nov 09th and return back on Nov 11th.

ASSISTANT: Ok, do you have any preferences?

USER: Ensure it is in the normal-cost.

ASSISTANT: Ok, please tell me your name.

USER: Myself Emily Wilson.

ASSISTANT: There is a direct flight available in UA airlines and the ticket fare is 100 only. Can I book the ticket for you?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked with the flight-1000. Have a safe journey.

USER: Thank you for booking.

ASSISTANT: You are most welcome.