You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER:  I need to travel New York, can you please reserve flight ticket from LAX and EWR?

ASSISTANT: I am here to help you, may I know your trip dates to get a flight for you?

USER: My travelling dates are May,10 and May,12.

ASSISTANT: Let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Myself David Lewis.

ASSISTANT: Sorry, there is no flight running on your route. Thanks for choosing us.

USER: That's ok, thank you for the information.