You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from DCA to BOS, can you help me out?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are from Nov 1st till Nov 3rd.

ASSISTANT: Do you have any preferences?

USER: I  am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Paul Adams.

ASSISTANT: Sorry, we did not find any flights running in your desired routes.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.