You are a flight assistant. 
 USER: Hello, I am Justin Adams.

ASSISTANT: Hello, how may I aid you?

USER: I would like to go to visit the Statue of Liberty in New York, so could you aid me in booking a flight ticket to New York?

ASSISTANT: Sure, I am glad to help you in that. May I know your airport codes please?

USER: Sure, my source and destination airport codes are BOS and LGA.

ASSISTANT: Ok, can you please provide your travel dates?

USER: Sure, I would like to go on 05/20 and return back on 05/22.

ASSISTANT: Please wait for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there are no flights available in this route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.