You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am William Davis. I am looking for a flight from IAD to CLT, can you please help me out?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are 04/10 and 04/12.

ASSISTANT: Please be on hold for a moment, I will check the availability. There is a connecting flight available with AA airline, shall I book it?

USER: Please proceed.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.