You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a film festival at Los Angeles, CA - LAX, can you help me with the booking?

ASSISTANT: Sure. Can I know your trip dates?

USER: I want to travel on 10/10 and 10/12. I need a direct flight.

ASSISTANT: Can I know your origin point?

USER: My source is at Charlotte,NC - CLT.

ASSISTANT: Do you have any price limit?

USER: Yes, the price should not exceed 5000.

ASSISTANT: Thanks for the information.

USER: OK.

ASSISTANT: We did not found any direct flights matching your requirements.

USER: Ok, no problem.

ASSISTANT: Can you please share your good name?

USER: I am Brenda Robinson. Thanks for your service.

ASSISTANT: Thanks for choosing us.