You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Gregory Davis. I am looking for a flight from ORD to LGA, can you please help me out?

ASSISTANT: May I know on what dates would you like to travel?

USER: My travelling dates are Mar 02 and Mar 04.

ASSISTANT: There is a connected flight in Frontier airlines with the fare 200.

USER: My departure time is evening.

ASSISTANT: No flights found in the evening.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.