You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Ryan King. I am planning to visit Central Park at New York, could you please help me with booking a flight ticket?

ASSISTANT: Ok, may I know your dates of journey?

USER: I would like to take off on 05/30 and return on 06/01.

ASSISTANT: Ok, please provide your locations to get a best flight for you.

USER: My nearest source airport code is BOS and destination airport code is LGA.

ASSISTANT: Sorry to inform you, there is no flight for you.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: Ok, thanks for contacting us.