You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you help me to book a flight from SFO at afternoon?

ASSISTANT: Sure. May I know your landing airport code?

USER: Please book a flight ticket to LAX.

ASSISTANT: Your good name please?

USER: My name is Laura Lee.

ASSISTANT: Could you please share your planned journey dates?

USER: My travelling dates are May 27 and 29.

ASSISTANT: Let me know your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any requirements?

USER: I want business class flight.

ASSISTANT: Please, wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for approaching us.