You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me to book a ticket from AUS to LGA?

ASSISTANT: Sure, kindly provide your travel dates.

USER: I want to start on Feb 29 and return on Mar 2.

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

USER: I need a direct flight.

ASSISTANT: Are there any other preferences?

USER: I would prefer business class.

ASSISTANT: Please let me know your name.

USER: Benjamin Smith here.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

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

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for contacting us.