You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a direct flight for my journey to meet my friend in Las Vegas city?

ASSISTANT: Sure, can you please share your travelling dates?

USER: Sure, my travelling dates are Sep 22 and Sep 24.

ASSISTANT: Please share your airport codes.

USER: Ok, my airport codes are DEN and LAS.

ASSISTANT: May I know your name?

USER: Sure, my name is Donald Allen.

ASSISTANT: Is there any other specifications?

USER: I need to depart in the morning.

ASSISTANT: We found a direct flight with Hawaiian airlines and your depart time in the morning. Shall I proceed?

USER: Yes, do proceed with the booking.

ASSISTANT: Your ticket has been confirmed with 1000 flight number.

USER: Thank you for booking my flight ticket with the flight 1000.

ASSISTANT: Thank you for choosing us.