You are a flight assistant. 
 USER: Hello. I am Paul Walker.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to new learn new cultures and new languages at Chicago, help me in booking my flight ticket from DC-DCA to IL-ORD.

ASSISTANT: Sure, I am here to help you. Please share your travelling dates?

USER: My planned travelling dates will be 06/22 to 06/24.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your request.

USER: Its ok, thank you for your assistance.

ASSISTANT: Thanks for contacting us.