You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you at this moment?

USER: Will you please assist me in booking a flight from JFK to reach DFW?

ASSISTANT: Sure, we are glad to help you. Can you please share your travel dates that you have planned?

USER: My preferable dates are 27th and 29th of August.

ASSISTANT: Is there any connection limit for you?

USER: Yes, I need it.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Rebecca Jackson.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: No, I don't have.

ASSISTANT: Please wait for a couple of minutes, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Not a problem, thank you for informing me.

ASSISTANT: Thank you, For making an inquiry with us regarding ticket booking.