You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am looking for a flight from LGA to PHL, can you help me out in booking the flight ticket?

ASSISTANT: Sure, could I have your trip dates, please?

USER: Sure, my trip dates are from Jul 7th till Jul 9th.

ASSISTANT: Do you have any specifications?

USER: I would start my journey in evening session.

ASSISTANT: May I know your good name to proceed further?

USER: Myself Nicholas Rodriguez.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.