You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Daniel Roberts.

ASSISTANT: Daniel Roberts. How can I help you?

USER: One of my friend is giving a part at Las Vegas , so I need a flight ticket booking. Can you please help me with that booking?

ASSISTANT: Sure, can you provide me with the airport codes?

USER: Thank you and my airport codes are from DTW to LAS locations.

ASSISTANT: May I know the travel dates?

USER:  I want to departure on 28 Aug and I will recur back on 30 Aug.

ASSISTANT: Is there any time concern?

USER: Yes, find the flight which will return back in the evening time.

ASSISTANT: May I know the class preference?

USER: I don't have any class preference.

ASSISTANT: Is there any connection limit?

USER: I am looking for a single stop over in my journey.

ASSISTANT: Is there any other preference?

USER: No.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT:  Spirit Airlines with flight 1005 is providing service on your route with single connection and cost of 100 where depart time is 8:00 AM and Arrival at 23:00 PM.

USER: Yes, you can proceed with flight ticket booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your enormous help in my flight ticket booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.