You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: May I know your desired travel dates please?

USER: My trip dates are Sept 22 and Sept 24.

ASSISTANT: Do you have any specifications?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name please?

USER: I am Jonathan Moore.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.