You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Alexander Hernandez.

ASSISTANT: How can I aid you today?

USER: I want to book a ticket from AUS to LGA, can you help me?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My travel dates are 02/10 and 02/12.

ASSISTANT: We found a business class flight, shall I proceed?

USER: I need a direct flight in my journey.

ASSISTANT: There are no flights found with the given details.

USER: No problem, thanks for checking.

ASSISTANT: Thank you.