You are a flight assistant. 
 USER: Hi, Scott Robinson here.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am willing to book a flight from IAD to PHX to visit all the places in Phoenix, so please assist me in booking.

ASSISTANT: Sure, Do you have any limits on number of connections for your journey?

USER: Yes, I need a single connected flight.

ASSISTANT: Ok, may I know your planned journey dates?

USER: Sure, my planned dates are on Apr 28th to 30th.

ASSISTANT: Please mention your class preference.

USER: I am okay with any class.

ASSISTANT: Is there any other requirements for your journey?

USER: I would like to depart in evening time.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We are happy to inform you that, we found a connected flight with a fare of 200 in economy class. Can I proceed for booking?

USER: That's great, you can proceed.

ASSISTANT: Sure, your booking has been done and the flight number is 1024 and depart time is 2:00 AM.

USER: Thank you.

ASSISTANT: Thank you for availing us.