You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Usually I prefer a connecting flight, but unfortunately my friend has already reserved my ticket with a direct flight. So, I want to change it. Can you please help me with this?

ASSISTANT: Sure, we are here to help you to change it. Kindly mention your name.

USER: Sure, I am Michelle Carter.

ASSISTANT: Thanks for providing your name, please be on hold.

USER: Sure, I will wait.

ASSISTANT: Thanks for being hold, we found a reservation on name to change it. Can you please share your travelling dates?

USER: I will depart on 11/28 and return on 11/30.

ASSISTANT: Ok, may I know your journey airport codes?

USER: My source is Dallas & Fort Worth, TX - DFW. I want to land at New York, NY - JFK.

ASSISTANT: Do you prefer connecting flight or direct flight?

USER: I want a direct flight.

ASSISTANT: Thanks for your details, please wait.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights found based on your scheduled dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.