You are a flight assistant. 
 USER: Hi.

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

USER: Can you please help me in booking my flight ticket from SFO to MSP?

ASSISTANT: Sure. Can you please mention your preferable travel dates?

USER: My travelling dates are May 28 and 30.

ASSISTANT: May I know your name for further process?

USER: Myself Gregory Adams.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: Yes, I need my return ticket at evening time.

ASSISTANT: Do you have any another specifications?

USER: I prefer connecting flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.