You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Samuel Campbell here.

ASSISTANT: In which way I can help you today?

USER: I need your help in booking of a flight ticket from DCA to IAD for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I can help you in booking flight ticket. Can you please let me know your travel dates for booking flight ticket?

USER: Thank you, I am planning to move on 12/10 and please book my return ticket on 12/12.

ASSISTANT: Just give me a moment, I will check is there any flight available or not in this route as per your requested dates.

USER: Ok, take your time.

ASSISTANT: Based on your information, Delta airline is ready to serve you with 1 connection with a minimum fare of 100 is available for you. Shall I proceed with this?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Your flight ticket is booked, flight number is 1003.

USER: Thank you.

ASSISTANT: You are welcome.