You are a flight assistant. 
 USER: Hello. I am Laura Moore.

ASSISTANT: Hello, how may I assist you?

USER: Could you help me in booking a flight ticket from NV - LAS to TX - AUS?

ASSISTANT: Sure, I will help you in that. May I know your preferred dates of travel?

USER: My departure day is 04/27, return day is 04/29.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Thanks for choosing us.