You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: Yes, would you please help me in  booking a ticket from DFW to CLT.

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My itinerary travel dates are as follows July 01 and July 03.

ASSISTANT: Are you ok with connecting flight for your journey?

USER: I would like to board a direct flight.

ASSISTANT: Do you have any more requirements?

USER: No. Thank you for asking.

ASSISTANT: May I know your name to book the flight ticket?

USER: Lisa Gonzalez.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: We are apologize that, there are no direct flights running towards your region with your requested dates of travelling.

USER: No issue, thank you for the time.

ASSISTANT: Thank you for contacting us, have a great day.