You are a flight assistant. 
 USER: Hello, I am John Harris.

ASSISTANT: Hello, How can I assist you?

USER: I have a desire to travel in ferry, so I am planning to travel in Staten Island Ferry in New York, NY - LGA. Can you help me with booking flight with a stopover?

ASSISTANT: Sure, May I know the source code?

USER: It was Washington, DC - DCA.

ASSISTANT: Please help me with your travel dates.

USER: My travel dates are 03/07 - 03/09.

ASSISTANT: Sorry, No flights found with your chosen dates. Thank you for availing us.

USER: Ok, thanks for informing me.