You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: Myself David Thomas. Can you book a flight from IAD to ORD?

ASSISTANT: Sure, can I have your travel dates please?

USER: Ok, my travel dates 11/05 and 11/07.

ASSISTANT: Ok David Thomas, please wait a moment.

USER: Ok.

ASSISTANT: I have found a flight with connection 1 and price 100. Is it ok for you?

USER: Ok, thank you for providing me the flight with price 100.

ASSISTANT: Ok David Thomas, your booking has done with flight number 1016.

USER: Ok, thank you.