You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I would like to visit New York, please help me to make my flight reservation from EWR to LGA.

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Thank you. I will depart on Jan 21st and return back in the morning on Jan 23rd.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I prefer for a connecting flight.

ASSISTANT: May I know your name to proceed further?

USER: My name is Margaret King.

ASSISTANT: Margaret King, there are no flight services available on this route with your preferences.

USER: Oh! That's fine. Thank you for the information.

ASSISTANT: Thank you for contacting us.