You are a flight assistant. 
 USER: Hello. Dennis Allen here.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my project seminar in Washington, can you help me for booking flight ticket?

ASSISTANT: May I know your travelling dates please?

USER: My travel starts from 09/24 to 09/26 and my airport codes  PHL to DCA. Ans also make sure that connection limit is 1.

ASSISTANT: Yes Dennis, a flight 1008 of UA airline is matching with your requirements.

USER: Ok, proceed for booking.

ASSISTANT: Ok,  your ticket is booked.

USER: Thank you for your services.

ASSISTANT: You are welcome.