You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Thomas Brown here. Can you please help me in booing my flight from IAD to reach EWR?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my travel dates are Jan 1st and 3rd.

ASSISTANT: Please wait a while. Do you have any preference?

USER: Make sure that, it is a direct flight which departs in afternoon.

ASSISTANT: Sorry to say, there is no flight available with 0 connection.

USER: Ok, not a problem. Thanks for the information.

ASSISTANT: Thank you for opting us.