You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Can you please book a flight ticket from LAS to ORD?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travelling dates are Dec 19 and Dec 21.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I don't have any other specifications.

ASSISTANT: Please share your name.

USER: My name is Janet Moore.

ASSISTANT: Ok, please wait a minute I will get back to you with the flight details.

USER: Ok.

ASSISTANT: As per the intents mentioned, United Airlines is providing a direct flight and the airfare is about 200. Shall I proceed with flight 1019?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.