You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Garcia here.

ASSISTANT: How can I assist you?

USER: I would like to visit Detroit to meet my sister, please help me in booking a ticket from LAX to DTW.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My planned travel dates are on Aug 10 and Aug 12.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that there are no direct flights available for you.

USER: Ok, no issues. Thank you for your information.

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