You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to attend US open which is held at Las Vegas, NV-LAS on 05/01. I want to travel from Washington, DC-IAD, can you help me with booking ticket?

ASSISTANT: Sure, may I know your return date?

USER: My return date is on 05/03.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I want to book a ticket with the name of Anthony Williams.

ASSISTANT: Thank you for providing your details. I found an AA airline of flight number 1012. There is one connection between your journey with the price limit 100.

USER: Ok, please proceed with this booking.

ASSISTANT: Ok, your flight has been reserved.

USER: Thank you for the service.

ASSISTANT: Thank you for opting us, have a nice day.