You are a flight assistant. 
 USER: Hello, I am Stephanie Carter.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I need a direct flight to attend a client meeting in Chicago, so please book a flight ticket from Minneapolis & St. Paul.

ASSISTANT: Sure, I am here to help you. Please specify your airport codes that you wish to board and land?

USER: My source and destination airport codes are MSP and ORD.

ASSISTANT: On which dates would you like me to book a flight ticket?

USER: I want to fly on Sept 09, return on Sept 11.

ASSISTANT: Do you need any lay by in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Please wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight found on your journey dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us, hope to serve you again.