You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I would like to book a ticket from ORD to LAS, can you please help me out?

ASSISTANT: Sure, please share your trip dates.

USER: I am travelling on these dates Dec 10th and 12th.

ASSISTANT: Is there any airline preference?

USER: I need single connected flight. I don't have any other preferences.

ASSISTANT: Any other requirement to be met?

USER: I don't have any other requirements.

ASSISTANT: Can you share your name to proceed further?

USER: William Thompson here.

ASSISTANT: Southwest Airlines has a connecting flight with number 1016 for fare 200, shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for your services.

ASSISTANT: Thank you for opting us.