You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am looking for a flight from ORD to IAD, can you help me in booking?

ASSISTANT: Sure, I am gleeful to help you with that. May I know planned travel dates?

USER: Sure, my planned travel dates are Sept 14 and Sept 16.

ASSISTANT: Do you have any class preference?

USER: No, I don't have any class preference.

ASSISTANT: Can I know your connection limit?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thank you.

ASSISTANT: May I know your name please?

USER: Myself Patrick Smith.

ASSISTANT: Southwest Airlines are having a flight-1024 with single connection limit and the ticket fare is 100. Would you like to book this ticket?

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

ASSISTANT: Your booking has been done in economy class.

USER: Thank you for the service.

ASSISTANT: Thank you for reaching us, have a safe journey.