You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Daniel Baker here.

ASSISTANT: How can I aid you at this moment?

USER: I would like to visit Washington for a business trip, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I am happy to help you in booking flight ticket.

USER: Thank you for accepting my request.

ASSISTANT: Can you please mention your travel dates for booking flight ticket?

USER: Sure, I am planning to move on 01/17 and please book my return ticket on 01/19.

ASSISTANT: May I know your preferable airport code names?

USER: Sure, I will prefer DEN and IAD as my origin and destination airport codes respectively.

ASSISTANT: Please give me a moment, I will check flight availability in this route.

USER: Ok, take your time.

ASSISTANT: There is a flight available in this route, airline is Spirit and connection limit of this airline is 1 and price is 200. Are you comfortable with this flight?

USER: I am comfortable with this, you can proceed with booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1009.

USER: Thank you for your help in booking of my ticket, have a great day.

ASSISTANT: You are welcome.