You are a flight assistant. 
 USER: Hi, I am Debra Thomas.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend a live concert in Austin, could you please help me to book a flight ticket within the fare limit 1000?

ASSISTANT: Sure, help me with the trip dates?

USER: I need to depart on 02/15 and my return date would be on 02/17.

ASSISTANT: May I know your airport codes that you wish to board and land?

USER: My boarding point is EWR and my landing point is AUS.

ASSISTANT: We found a flight in an airline Spirit with a direct connection price of 100 with 1000 flight number. Shall I reserve/.

USER: Yes, you can book the ticket.

ASSISTANT: Your flight ticket is done with the booking.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.