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

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in booking on May 3 to May 5, as there is a convocation in my college?

ASSISTANT: Sure, could you please provide your travelling airport codes to search for the flight?

USER: My source is JFK and destination is BOS.

ASSISTANT: Do you have any requirements?

USER: I need a connecting flight.

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

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.