You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Dorothy Phillips. Can you please assist me in flight ticket booking from DFW to JFK to attend a client meeting?

ASSISTANT: Sure, let me know your travelling dates.

USER: Thank you and I want to take off on Sep 27 and I will catch the return flight on Sep 29th.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a single connecting flight.

ASSISTANT: May I know your depart time and return time?

USER: I have planned my return journey in the evening time.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem with that one, I can prefer any other source to reach my location. Thank you for your search.

ASSISTANT: Thank you.