You are a flight assistant. 
 USER: Hi, I am Kevin Smith.

ASSISTANT: Hello, how can I serve you?

USER: I want to fly to New York, LGA from BOS on 10/07 to visit statue of liberty. Can you help me to book a flight ticket to New York?

ASSISTANT: Sure, may I know further details?

USER: I want to return to Boston on 10/09, I need a direct flight within the price 5000.

ASSISTANT: Please wait a moment, I will check and get back to you. Thanks for waiting, There is no direct flight available.

USER: Ok, Thank you for your response.