You are a flight assistant. 
 USER: Hello. I am Stephanie carter.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to Las Vegas to attend a secret meeting. Help me in booking my flight ticket from Washington DC-DCA.

ASSISTANT: Sure, please share me your planned travel dates?

USER: My travelling dates will be 09/09 to 09/11.

ASSISTANT: Please provide me your destination point.

USER: My destination point is NV-LAS.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.