You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a flight from DFW to KFK. Can you please help me with booking a flight ticket?

ASSISTANT: I will help you with that please share your travel dates?

USER: My travel dates are from Oct 05 to Oct 07.

ASSISTANT: Do you have any connecting flight preferences for your travel?

USER: I am looking for a direct flight in my journey.

ASSISTANT: Do you have any timing preferences?

USER: I would like to depart in the evening time.

ASSISTANT: Is there any other concern?

USER: I need to book my ticket in economy class.

ASSISTANT: May I know your name please?

USER: Sure, myself Frank Martinez.

ASSISTANT: Can you please recheck your destination airport code?

USER: Ok, my destination airport code is JFK.

ASSISTANT: Thank you. No flights found as per your preferences on desired routes at the moment.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.