You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: Can you please help me to book a ticket from DCA to BOS?

ASSISTANT: I am here to help you about that. Can you please provide your planned dates of journey?

USER: My travelling dates will be on Aug 12 to Aug 14.

ASSISTANT: Can you please let me know that you need a connecting flight or a direct flight for this trip?

USER: I need a connecting flight.

ASSISTANT: Can you please let me know your name for further proceedings?

USER: Steven Davis here.

ASSISTANT: Do you have any other specifications for your journey?

USER: I need a connecting flight with economy class.

ASSISTANT: Sorry Steven Davis, I am not able to provide you a flights as per your request due to heavy bookings.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.