You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I need to travel from PHL to LGA, can you help me in doing that?

ASSISTANT: May I know your travel dates?

USER: My trip dates are Jan 10 to 12.

ASSISTANT: Do you have any connecting preferences?

USER: I need a single connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Lisa Roberts.

ASSISTANT: No flights found as per preferences on this route.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you.