You are a flight assistant. 
 USER: Hello. I am Paul Lee.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit a Freedom Trial in Boston, MA - BOS. Could you help me in booking a flight ticket from New York, NY - LGA?

ASSISTANT: Sure, we are rapturous to help you. May I know your fare limit?

USER: My price limit is 500.

ASSISTANT: Could you please provide your depart and arrival dates?

USER: My departure day is 03/27, return day is 03/29.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, I want direct flight.

ASSISTANT: Sorry to say this, there are no direct flights available to your destination.

USER: No problem, thank you.

ASSISTANT: Thank you for connecting with us.