You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket to DTW from LAS which departures in the morning?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my travelling dates are Dec 10 and Dec 12.

ASSISTANT: Do you want connecting flight?

USER: I need a connecting flight for my journey.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Sure, my name is Patrick Hernandez.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for opting us.