You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Please help me to book an economy class ticket from Austin to attend my sister's engagement in Washington.

ASSISTANT: Sure, I am here to help you. Can you please provide your airport codes of journey?

USER: My source and distention points are AUS and IAD.

ASSISTANT: May I know your planned dates of journey please?

USER: I would like to depart on May 1st and my return date will be on May 3rd.

ASSISTANT: Do you have any class preference?

USER: I already mentioned above.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Linda Nelson.

ASSISTANT: Spirit Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 19:00PM and arrives at 18:00PM, shall I book your ticket in this flight?

USER: That's fine, you can book the ticket.

ASSISTANT: Linda Nelson, your ticket is booked in economy class of flight number 1011.

USER: Thank you for your support in booking.

ASSISTANT: You are welcome and have a safe journey.