You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I am Stephen Wilson.

ASSISTANT: Ok.

USER: Could you please book a flight ticket to DEN from LAS as I want to attend a pioneer festival?

ASSISTANT:  Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are Feb 14th and Feb 16th.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I want to return in the morning.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1005 UA airlines with single connection with economy class and arrival time is 7:00 AM. Shall I proceed with the booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved with price 200.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.