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 LGA and EWR?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Oct,21 and Oct,23.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Myself John Evans.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: That's ok, I will choose any other source to reach my destination. Thank you for the information.

ASSISTANT: Thank you for reaching us.