You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Will you help me in booking the flight ticket from DCA to BOS?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My preferable journey dates are Oct 25 and Oct 27.

ASSISTANT: May I know your name to proceed further?

USER: Myself Nancy Lopez.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight in between my journey.

ASSISTANT: Nancy Lopez, here is a connecting flight in economy class with Spirit airlines. Can I proceed with it?

USER: Sure, you can proceed with the booking.

ASSISTANT: Sorry Nancy Lopez, there is no direct flight.

USER: Ok, not an issue. Thank your for your help.

ASSISTANT: Thank you for reaching us.