You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Can you reserve me flight ticket from DCA to LAX?

ASSISTANT: Sure, I will help you. Please help me with your planned travelling dates.

USER: My trip dates are Sept 24 and Sept 26.

ASSISTANT: Please help me with your name.

USER: Amanda Martin here.

ASSISTANT: Do you need a break in between your journey?

USER: I need a break in between the journey.

ASSISTANT: Do you have any other preferences in your journey?

USER: No more preferences.

ASSISTANT: Amanda Martin, I am really sorry to inform you that there are no flights available for your journey.

USER: Thank you for opting us.

ASSISTANT: Thank you for reaching us. Have a great time.

USER: Your welcome.