You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please reserve me a flight ticket from DCA to LAS?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Thank you, my trip dates are 12/27 - 12/29.

ASSISTANT: May I know your name to proceed further?

USER: Catherine White here.

ASSISTANT:  Catherine White, here is a connecting flight in economy class with UA airlines. Can I proceed with it?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with 1014 flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.