You are a flight assistant. 
 USER: Hello, my name is Sharon Brown.

ASSISTANT: Hello, how may I assist you Brown?

USER: I want to attend a business meeting at Minneapolis & St. Paul, can you help me to book a direct flight?

ASSISTANT: Sure, I will help you to book a flight ticket. On which dates you want to travel to this business meeting?

USER: I want to travel on 03/24 and intend to return on 03/26.

ASSISTANT: Ok, can I have your travel airport codes?

USER: Yes, I want to travel from ATL to MSP.

ASSISTANT: Please wait for a minute to check the flight details.

USER: Ok.

ASSISTANT: Thank you for you patience. Based on your request, I cannot find any flight to this route.

USER: Ok fine, thanks for the information.

ASSISTANT: It's my pleasure, have a great day.