You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to travel Minneapolis. Can you please help me in reserving the ticket from SFO to MSP?

ASSISTANT: Sure, I will help you in booking. May I know your trip dates?

USER: I am planning my trip on Dec 6 and again I will be return back on Dec 8.

ASSISTANT: Do you have any connection limit preference?

USER: I am flexible with direct flight.

ASSISTANT: Do you have any other specifications?

USER: My airline preference is normal-cost.

ASSISTANT: May I know your name to proceed further?

USER: Myself Cynthia Smith.

ASSISTANT: Cynthia Smith, regret to inform that there are no flights found for the given dates.

USER: Not a big deal, anyhow thank you very much for your service.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.