You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you at this moment?

USER: Alexander Adams here. Can you book a flight ticket for my airport codes that is from IAD to DCA?

ASSISTANT: Sure, I am happy to help you with that.  Can I have your travel dates please?

USER: The travel dates are from Feb 15 to Feb 17.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: That does not matter.

ASSISTANT: Do you have any other specifications?

USER: I prefer a stopover flight.

ASSISTANT: Can I have your good name please?

USER: I am Alexander Adams.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the ticket fare is 200. Shall I proceed with booking?

USER: I am fine with the airlines. You can book the flight ticket.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1001.

USER: Thank you.

ASSISTANT: Most welcome.