You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me to book a flight from JFK to MSP?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I want to travel on 20 Feb and return on 22 Feb.

ASSISTANT: Do you have any connection limit preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: I would like to return in the evening.

ASSISTANT: May I know your name to proceed further?

USER: I am Jacob Hill.

ASSISTANT: Jacob Hill, there are no flight services available on this route with your preferences.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for contacting us.