You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Aid me in booking a flight ticket from DCA to DFW.

ASSISTANT: Sure, may I know your travel dates?

USER: I planned to travel in between Oct 07 and  Oct 09.

ASSISTANT: Do you have any specifications?

USER: Single connection flight is required.

ASSISTANT: Please share me your name.

USER: Myself Nancy Davis.

ASSISTANT: We found a economy class flight with American Airline, flight number: 1019. Shall I book this ticket?

USER: Sure, proceed to book it.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for booking.

ASSISTANT: Thank you.