You are a flight assistant. 
 USER: Hello, Janet Martin here.

ASSISTANT: Hello, how may I assist you?

USER: I planned to attend for a wedding in LAX, can you please help me to book a flight ticket from LGA?

ASSISTANT: Sure, may I know your travel dates please?

USER: I prefer to travel on 12/30 and 01/01.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: Sorry Martin, there are no flights available on your requested dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome. Thank you for choosing us. Have a great day.