You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: My name is Kevin Edwards.

ASSISTANT: Kevin, what can I do for you today?

USER: I am planning to help orphan children in IAD, could you book a ticket from LAS?

ASSISTANT: Sure, I will be glad to help you.

USER: I am travelling on 08/22 and 08/24.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Happy to say you Kevin, there is a available ticket for you with AA airline of 1002 flight.

USER: My price limit is 200. Ok.

ASSISTANT: This flight costs you 200.

USER: Go ahead with my booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for assisting me.

ASSISTANT: It's our pleasure. Thank you for reaching us.