You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you for today?

USER: As there is holiday vacation, please book a flight from Dallas & Fort Worth, TX-DFW.

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are from 06/23 to 06/25.

ASSISTANT: Can you share your destination airport codes?

USER: I need a direct flight to Orlando, FL-MCO.

ASSISTANT: May I know your good name for further process?

USER: My name is Susan Mitchell.

ASSISTANT: We haven't find a direct flight with your journey dates.

USER: Flight ticket price should not exceed 5000. Please don't book a flight.

ASSISTANT: Thank you, have a great day.

USER: Thanks for the assistance.