You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need a direct flight for my journey to New York to visit Central park in the month of August. Can you please help me in booking my flight ticket?

ASSISTANT: Sure, please provide me your travel dates.

USER: Sure, my travel dates are 08/12 and 08/14.

ASSISTANT: May I know your travelling airport codes?

USER: Sure, my travelling airport codes are MCO and LGA.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Christine Lewis.

ASSISTANT: Sorry, I could not find any flight with your travel dates. Welcome.

USER: Not an issue, anyways thank you for the information.

ASSISTANT: Welcome.