You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket from DTW to reach my destination. Can you please assist me for booking in business class?

ASSISTANT: Sure, may I know your destination airport code?

USER: Sure, I want to reach DCA.

ASSISTANT: Can I know your planned travel dates?

USER: My planned journey dates Jan 8 and 10.

ASSISTANT: Do you have any airline preference?

USER: I would prefer not to fly a low cost airline.

ASSISTANT: Please let me know if you have any other requirements.

USER: I need a connected flight.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Steven Phillips.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given preferences.

USER: Ok, Thank you.

ASSISTANT: Thank you for approaching us.