You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Kathleen Collins. Please book a ticket from Chicago, IL-ORD to Orlando, FL-MCO.

ASSISTANT: Sure. May I know your journey dates?

USER: My departure date is 03/23 and 03/25 is my return date.

ASSISTANT: Do you have any specifications?

USER: Ticket price limit is 500. Flight connections limit is 1.

ASSISTANT: No flights found on your journey dates.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us, have a nice day.