You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need a direct flight to Dallas for attend a event on fishing at Joe pool lake. Help me to find a flight under price of 500.

ASSISTANT: Sure, may I know your travelling dates, please?

USER: I will travel on 06/13 and return on 06/15.

ASSISTANT: Let me know your airport codes please?

USER: My destination is Dallas, TX-DFW and source airport is NC-CLT.

ASSISTANT: May I know your good name please?

USER: My name is Brenda Williams.

ASSISTANT: Thank you Brenda, we found a flight on your details with airline Spirit, flight number: 1011. Shall I proceed for booking?

USER: Sure.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking flight ticket.

ASSISTANT: Thanks for choosing us. Have a good day.