You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Samantha Scott.

ASSISTANT: Scott, how can I aid you today?

USER: I am looking for a flight from SEA to DEN, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my planned travel dates are 12/23 and 12/25.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, I will wait for your response.

ASSISTANT: I found a flight for you with UA airline and it costs you 200. Shall I proceed?

USER: That's fine, please proceed in booking.

ASSISTANT: Your ticket has been booked with 1004 flight number.

USER: Thank you for your service.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.