You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: Please book a ticket from Las Vegas, NV-LAS to Orlando, FL-MCO to attend a sports event.

ASSISTANT: Sure, can you please mention the dates of your journey?

USER: My travelling dates are from 09/21 to 09/23.

ASSISTANT: Do you need a connection in between your journey?

USER: I need a halt.

ASSISTANT: May I know your name?

USER: I am Paul Smith.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Thanks.

ASSISTANT: Thank you for choosing us.