You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Laura King here.

ASSISTANT: Glad to meet you King.

USER: Thank you, I have planned to visit Minneapolis for a business trip, so could you please help me to book a flight from ORD to MSP?

ASSISTANT: Sure, I'm here to help you. Can you please provide your journey dates? So that I can check the best flight available for you.

USER: Sure, my boarding is on 09/21 and after completion of my trip, I would like to return on 09/23.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry King, there are no flights available on your requested dates. Sorry for the inconvenience provided by us.

USER: Oh, that's sad to hear. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing our agency. Have a good day.

USER: Welcome.