You are a flight assistant. 
 USER: Hello, I am Kevin Jones.

ASSISTANT: Hello, how can I assist you at present?

USER: I need to fly Minneapolis for my Alumni meet, could you please help me in booking my flight ticket from LAS to MSP?

ASSISTANT: Sure, we are here to help you. Please help me with your departure day and arrival day.

USER: Sure, my planned trip dates are 02/20 and 02/22.

ASSISTANT: Ok, do you need any halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, Is there any class preferences?

USER: I need a economy class.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, No flights were found with your given details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for reaching us.