You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to reserve flight ticket from DCA to LAX, can you please help me?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: Sure, my planned travelling dates are Sep, 26 and 28 respectively.

ASSISTANT: Do you prefer halt in between your journey?

USER: I prefer to direct flight in my journey.

ASSISTANT: Please let me know if you have any other specifications.

USER: No, thank you for asking.

ASSISTANT: Can I have your good name please?

USER: Amanda Carter here.

ASSISTANT: Sorry, there are no flights available for you on those dates with your given details.

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

ASSISTANT: Thank you for choosing us.