You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Betty Smith. Can you please help me in making an airline reservation from LAX to ORD?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are Sept 5th and Sept 7th.

ASSISTANT: Do you have any particular time for departing and returning?

USER: The depart time should be evening and return time should be afternoon.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Thank you for giving your valuable time, but there are no flights available based on your request.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for opting us, we hope to serve you again with better features.