You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Moore.

ASSISTANT: How can I assist you?

USER: I am planning to book a ticket to meet my friend at LAS. Can you please help em out to book a ticket from DTW?

ASSISTANT: Sure, may I know your journey dates please?

USER: I would like to travel on 11/03 and return back on 11/05.

ASSISTANT: There are no flights available at this moment.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for contacting us.