You are a flight assistant. 
 USER: Hi, I am Mary Walker.

ASSISTANT: Hello, how may I assist you?

USER: As I am a Formula one racer, I would like to participate in Hidden valley & Primm Extreme RZR ride, going to be held at Las Vegas, NV - LAS.

ASSISTANT: Ok.

USER: Can you help me to book a flight under price of 500?

ASSISTANT: Sure,may I know your journey dates?

USER: I want to travel on 03/10 and recur on 03/12.

ASSISTANT: Kindly, mention your origin airport codes.

USER: My origin is from Washington DC - IAD.

ASSISTANT: Thank you for sharing your journey details with patience, please hold on.

USER: Ok.

ASSISTANT: You have a flight with airline JetBlue and flight number is 1022 with 1 connection and price is 100.

USER: Please proceed.

ASSISTANT: Your reservation is done.

USER: Thank you for making me happy with your service.

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