You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need a direct flight for my journey to New York for attend an exhibition. Can you help me in booking my flight ticket from EWR?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my desired travel dates are Aug 2 and Aug 4.

ASSISTANT: Please share your destination airport code.

USER: Ok, my destination airport code is LGA.

ASSISTANT: May I know your name please?

USER: Sure, my name is Frank Anderson.

ASSISTANT: Do you have any specifications?

USER: Yes, I need to departure in the evening from my location and need to catch a return flight in the afternoon.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Not an issue with that, I will go with another resources to complete my trip. Anyways thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.