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

ASSISTANT: Hello, how may I render 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. So, please book a ticket on 08/13?

ASSISTANT: Sure. Please let me know your airport codes.

USER: Those are Los Angeles, CA - LAX is my source.

ASSISTANT: Ok, do you need a way station with in your route?

USER: And LAS Vegas, NV - LAS. Yes, I need a way station in between.

ASSISTANT: When would you like to come back?

USER: On 08/15 I would like to come back.

ASSISTANT: Ok, we found an Southwest airline with flight number 1021 and price of 100 available for you. Shall I proceed?

USER: Yes, please.

ASSISTANT: Your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.