You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you please reserve me a direct flight ticket to reach Las Vegas from Boston?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My trip dates are 01/25 - 01/27.

ASSISTANT: Do you have any airline preferences?

USER: No, I do not have any preferences in airlines.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Thank you for asking, No.

ASSISTANT: There is a direct flight with ticket fare 200 in Hawaiian airlines in economy class. Is it ok for you?

USER: Please reserve.

ASSISTANT: Can you please provide your name to proceed further?

USER: I am Steven Brown.

ASSISTANT: Your booking is confirmed with flight number 1012. Departure time is 21:00 PM and arrival time is 18:00 PM.

USER: Thank you for your services.

ASSISTANT: Thank you for contacting us, have a nice day.