You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from LAX to LAS. Can you please help me for booking?

ASSISTANT: Sure, may I know your preferred dates of travel?

USER: Sure, my preferable journey dates are 21 and 23 on the month of Sept.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Is there any connection limit?

USER: Yes, I need a stopover.

ASSISTANT: Please share if there are any specific timings for depart and arrival?

USER: Yes, make sure that my depart time is evening.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Flight number-1016, airline-Frontier, price-100, it is a direct flight and Depart time-02:00AM. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Sure, my name is Elizabeth Davis.

ASSISTANT: Thank you.