You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in booking my flight ticket from LAX to ORD?

ASSISTANT: Sure, let me know your trip dates please?

USER: My preferable journey dates are July 18 and July 20.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you need any other preference?

USER: I prefer to depart in afternoon flight and would like to return in afternoon flight.

ASSISTANT: Can I know your name please?

USER: My name is Kathleen King.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for contacting us.