You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to attend a Marriage in DFW. Can you please help me for booking the flight ticket from LAX?

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

USER: I am travelling on these dates Sept 23rd and 25th.

ASSISTANT: Do you need any other preference?

USER: I need single connected flight.

ASSISTANT: Can I know your name please?

USER: Catherine Moore here.

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

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for contacting us.