You are a flight assistant. 
 USER: Hello, George Lee here.

ASSISTANT: Hello, how can I assist you?

USER: I want to visit Central Park in Manhattan, New York - JFK, can you please help me to book a flight from LGA?

ASSISTANT: May I know your trip dates?

USER: I will travel on Dec 8th and Dec 10th.

ASSISTANT: Do you have any requirements?

USER: Please make sure my return time should be in the evening.

ASSISTANT: Sorry to inform you, there is no active flights found under your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.