You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to visit Boston, will you help me in booking the flight ticket from JFK to BOS?

ASSISTANT: Sure, I am here to help in booking. Can you please share your travel dates?

USER: My travelling dates are Jan 25 and Jan 27.

ASSISTANT: Ok, may I know your name?

USER: Brian Phillips here.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any specification?

USER: I always prefer business class.

ASSISTANT: Sorry, no flights are available on you preferable travel dates.

USER: Ok, not an issue. Thank you for your information.

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