You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My name is Melissa Nelson. I would like to travel from AUS to DFW to attend a seminar, could you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you with that. Can I know your preferable travel dates?

USER: I would like to take off on 10/19 and return on 10/21.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Sure.

ASSISTANT: Melissa, there is a flight available with Spirit airline and the price fare is 100 with 1 connection.Would you like me to proceed the booking?

USER: Please proceed with the booking.

ASSISTANT: Your booking is confirmed with 1001 flight number.

USER: Thank you for the help.

ASSISTANT: You are welcome. Thank you for contacting us.