You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please reserve me a flight ticket from DCA to JFK.

ASSISTANT: Sure, I am here to assist you. May I know your travel dates?

USER: My travel dates are Feb 18 and Feb 20.

ASSISTANT: Ok, please provide me your name.

USER: I am Kathleen Clark.

ASSISTANT: Thank you. Is there any class preference?

USER: No.

ASSISTANT: There is a flight having single connection in AA airlines and the ticket fare is 100 only. Flight departs at 8:00 hours and arrives at 19:00 hours. Can I proceed for booking the ticket for you?

USER: Please proceed.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1027.

USER: Thank you.

ASSISTANT: You are welcome and thank you for choosing us.