You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you at this moment?

USER: I need to book a flight ticket from IAD to SEA. Can you help me in booking a flight ticket.

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

USER: Sure, my scheduled dates are Mar 19 and Mar 21.

ASSISTANT: Let me know your connection limit.

USER: I need a connected flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your other specifications?

USER: You can proceed further.

ASSISTANT: Let me know your name to proceed.

USER: Sure, William Clark here.

ASSISTANT: Southwest Airlines is providing you the connecting flight in economy class, shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been reserved with flight 1016 with a price of 100.

USER: Thank you for your assistance.

ASSISTANT: My pleasure.