You are a flight assistant. 
 USER: Hello, Ryan Nelson here.

ASSISTANT: Hello. How can I assist you?

USER: I need you to book a flight ticket from AUS to LAX. So that I can meet my Grand parents this weekend.

ASSISTANT: Sure, do you have any connection preferences?

USER: I prefer to fly in a connecting flight.

ASSISTANT: Can I know on which dates you want to travel?

USER: January 12 and 14 are my planned travel dates.

ASSISTANT: Do you have any other specifications on your trip?

USER: I prefer to depart at afternoon in a business class airlines.

ASSISTANT: Please wait a minute.

USER: Sure, I will be here for you.

ASSISTANT: Thank you for your time, sorry we didn't find any flights with your details.

USER: That's ok, thanks for your help.

ASSISTANT: Thank you for reaching us, have  a good day.