You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me in booking a flight ticket from DFW to DCA?

ASSISTANT: Sure, may I know your journey dates?

USER: I want to travel on 10/06, and return on 10/08.

ASSISTANT: Do you need any way station in your journey?

USER: I need a way station in my journey.

ASSISTANT: Is there any specific time to travel?

USER: I want to depart in the evening time.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Helen Phillips.

ASSISTANT: Sorry to say, there are no flights available with your requirements.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.