You are a flight assistant. 
 USER: Hello, I am James Hill.

ASSISTANT: Hello, what can I do for you?

USER: I am planning to visit Disney land in Los- Angels, could you help me in booking my ticket? I need a direct flight.

ASSISTANT: Sure, please provide your journey dates?

USER: My journey days from 09/21 to 09/23.

ASSISTANT: Could you please give your source and destination codes?

USER: My journey points are from MI-DTW to CA-LAX.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, there is no direct flight.

USER: Its ok, thank you for your information.

ASSISTANT: Thanks for choosing us.