You are a flight assistant. 
 USER: Hello, my name is Dorothy Davis.

ASSISTANT: Hello, how can I serve you now?

USER: I want to book a flight ticket from NY-EWR to DC-IAD. Can you please help to book a ticket with fare of 200?

ASSISTANT: Sure, I will help you with that. Please share me your journey dates?

USER: My travelling dates are from 08/27 to 08/29.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need one connection.

ASSISTANT: Sorry to inform you there is no any flight available on your journey details.

USER: No issues. Thanks for your information.

ASSISTANT: Thank you have a nice day.