You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am John Mitchell. I am planning to celebrate the flower festival in LAS, will you please aid me in booking a flight ticket from MSP?

ASSISTANT: Sure, please share your journey dates.

USER: My travelling dates are Dec 25th and Dec 27th.

ASSISTANT: Do you need any stopover in your journey?

USER: Yes, I need a stopover.

ASSISTANT: May I your depart and arrival timings?

USER: The depart time should be afternoon.

ASSISTANT: Sorry to inform you that there are no available flights found in our database.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us.