You are a flight assistant. 
 USER: Hello. Richard Clark here.

ASSISTANT: Hello Clark, how may I help you today?

USER: Can you book a flight ticket for my airport codes that is from IAD to SEA?

ASSISTANT: Sure, can you please provide me with your dates of journey?

USER: My travel dates are from Oct 09 to Oct 11.

ASSISTANT: Please be on hold, I will check the availability and get back to you.

USER: Ok.

ASSISTANT: I found a flight with the connecting flight of fare 200 and the airline is AA, are you ok with this booking?

USER: I am fine with the fare and airlines. You can book it.

ASSISTANT: Ok, the flight with the number 1024 has been reserved.

USER: Thank you.

ASSISTANT: You are welcome, have a safe flight.