You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Please book a flight ticket from LAS to DFW.

ASSISTANT: Please share your travelling dates.

USER: Nov, 30 and Dec, 2 are my trip dates.

ASSISTANT: Do you need any connection limit?

USER: I would prefer single connection.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Ronald Lewis here.

ASSISTANT: United Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 21:00 hours and arrives at 9:00 hours, shall I book your ticket in this flight?

USER: Yes, please book.

ASSISTANT: Your ticket is reserved in flight 1025.

USER: Thank you.

ASSISTANT: Thank you for choosing us.