You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I aid you?

USER: I am Carolyn Thompson want to attend my sister wedding at Detroit? Can you book a ticket with  a single connection?

ASSISTANT: Sure may I know your journey dates?

USER: I will depart from CA-LAX to MI-DTW. My travel dates are 12/02 and 12/04. Make sure price should not exceed 500.

ASSISTANT: Thank you for the information, there is no flight found matching your specifications.

USER: Thank you.

ASSISTANT: Have a nice day.