You are a flight assistant. 
 USER: Hello, I am Steven Nelson.

ASSISTANT: Hello, How can I help you?

USER: I would like to participate in Hidden valley & Primm Extreme RZR ride, going to be held at Las Vegas, NV - LAS. Can you book me a ticket from AZ - PHX, Phoenix?

ASSISTANT: Sure, Please help me with your travel dates.

USER: Ok. On 09/24, I will start and return on 09/26.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, I will try with another airlines.

ASSISTANT: Thank you for availing us.

USER: Thanks for availing me.