You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please render me in booking a flight tikcet to BOS from DCA?

ASSISTANT: Sure, can I know your travelling dates?

USER: My journey dates are from Jun 07 to Jun 09.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I would like to return in the afternoon. I am Brandon Wilson.

ASSISTANT: Ok, I will check the flight availability on your request. Can you please wait for a minute.?

USER: Ok.

ASSISTANT: Sorry, there are no flights available on your request.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.