You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in booking a flight ticket from New York, EWR to JFK?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from Nov 01 to Nov 03.

ASSISTANT: On which name shall I reserve flight ticket?

USER: My name is Gary Lee.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight ticket.

ASSISTANT: Do you need any other specifications?

USER: I prefer to travel in economy class flight.

ASSISTANT: Sorry, no flight tickets available directly on your route.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching our service.