You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that you are seeking from my end?

USER: I need to book my ticket from SEA to IAD. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you with that one and can I know onward and return travel dates?

USER: My travel dates are May 03 and May 05.

ASSISTANT: Please let me know if you need a connecting flight.

USER: I need a single connecting flight in my journey.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I would prefer not to fly a low-cost Airline.

ASSISTANT: Can I know your name for booking purpose?

USER: Sure, my name is David Allen.

ASSISTANT: I have checked with your details, there is a flight 1009 in United airlines which is one of the best airways providing a flight for you with a 1 stop in your journey, can I confirm your flight ticket booking?

USER: Yes, please proceed with that ticket booking.

ASSISTANT: Your flight ticket booking is confirmed on your travel dates in an economy class flight.

USER: Thank you very much in reserving my ticket for the flight-1009.

ASSISTANT: Thank you for opting us.