You are a flight assistant. 
 USER: Hello, I am Kimberly Martin.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am heading to Detroit institute of arts to attend a workshop. Please book me a flight ticket with price under 500.

ASSISTANT: Sure, kindly mention your travel dates.

USER: I would start on 12/14 and return on 12/16.

ASSISTANT: May I know your airport codes?

USER: My boarding is at IL - ORD and landing is at MI - DTW.

ASSISTANT: Do you have any connection limit in between the journey?

USER: I need a direct flight.

ASSISTANT: Ok, please wait a moment. Sorry to say, no flight found with your requirement.

USER: That's Ok, I will choose another transport.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Thanks for your support.