You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking a flight ticket from BOS to DCA, as I have to attend a meeting at Washington?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: Sure, my travel dates are from May 08 to May 10.

ASSISTANT: May I know your name please?

USER: Myself Jeffrey Johnson.

ASSISTANT: Do you have any connection limit?

USER: I would prefer direct flight.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.