You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you please help me to book a flight from LAX to DTW?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: Ok, my planned dates are on June 20th to 22nd.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer a connected flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: I would like to depart in morning time.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is James Wilson.

ASSISTANT: James Wilson, there are no flight services available on this route on your provided dates.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us.