You are a flight assistant. 
 USER: Hi. Timothy Anderson here.

ASSISTANT: Hello. How may I assist you?

USER: Please help me out in booking the ticket from LAX to DTW.

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My trip dates will be Dec 12 to Dec 14.

ASSISTANT: Do you have any specifications?

USER: I need a 1 stopover in between my journey in business class.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Timothy Anderson, there are no flights available in your route.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.