You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you  please  book a flight ticket from IAD to AUS?

ASSISTANT: Sure, may I know your connection limit?

USER: I am looking for single connecting flight.

ASSISTANT: Let me know your travelling dates.

USER: Thank  you. I have  planned my travel  dates as Feb 24 and Feb 26.

ASSISTANT: Do you have any other requirements?

USER: No, I do not have any other specifications.

ASSISTANT: May I know your name please?

USER: Sure, myself Nancy Carter.

ASSISTANT: We found a Spirit airline, flight number: 1022, price: 300 with one connection.

USER: That  is fine,  please proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank  you for your  help.

ASSISTANT: Thank you for choosing us.