You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight from Austin to attend a meeting at San Francisco. Can you book a connecting flight for me?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: I will fly on Jan 06 and return on Jan 08.

ASSISTANT: Can you please share your airport codes?

USER: My source point AUS and my destination is SFO.

ASSISTANT: May I know your name?

USER: My name is Benjamin Evans.

ASSISTANT: Is there any class preference?

USER: Yes, I want business class flight.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.