You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have planned trip to Detroit to meet my sister, so can you please help me with flight ticket booking from ORD to DTW locations?

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you so much.

ASSISTANT: May I know your travel dates?

USER: Sure, I want to take off on Nov 24 and I will catch the return flight on Nov 26.

ASSISTANT: Is there any class preference for you?

USER: No, I am ok with any class flight.

ASSISTANT: Do you need any way station in your journey?

USER: No, I need a direct flight for this flight journey.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Laura Moore.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: Sad to hear that one from your end, anyway thank you for your search and providing the information.

ASSISTANT: Thank you for availing us.