You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Can you please book a flight ticket to Los Angeles, LAX as I am planning to attend for storytelling festival?

ASSISTANT: Sure. May I know your good name?

USER: I am Gregory Jackson.

ASSISTANT: Help me your trip dates.

USER: I want to travel on 11/15 to 11/17.

ASSISTANT: Could you please share your source code?

USER: My boarding point is Las Vegas, LAS.

ASSISTANT: Do you have any connection limit?

USER: No, I need a direct flight.

ASSISTANT: Thanks for waiting, there is no direct flight availbe with your given requirements.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thank you for choosing us.