You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you today?

USER: I am Kimberly Wilson. I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, OAK.

ASSISTANT: Ok.

USER: Can you please aid me in booking a flight ticket?

ASSISTANT: Sure, what is the airport that you want to board from?

USER: I want to board from Austin, AUS.

ASSISTANT: Kindly, mention your travelling dates?

USER: I want to travel on 03/11 and return on 03/13.

ASSISTANT: Are you okay with connecting flight?

USER: No, I need a direct flight.

ASSISTANT: Unfortunately, no flights were found on your route.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.