You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking to book a flight ticket from DTW to LAX. Can you help me for that?

ASSISTANT: Can you provide me with the travel dates?

USER: My travelling dates are Oct 07 and Oct 09.

ASSISTANT: Is there any connection preference?

USER: I need a single connecting flight.

ASSISTANT: May I know the class preference?

USER: I prefer business class.

ASSISTANT: Are there any more preferences?

USER: No.

ASSISTANT: Lat me know your name please.

USER: My name is Kimberly Parker.

ASSISTANT: Sorry to inform that there are no flights on your route with the given dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.