You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to spent my holiday at Phoenix to participate in Death valley adventure. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your airport details?

USER: My origin is Lag Vegas, NV-LAS and my destination is AZ-PHX.

ASSISTANT: Please provide me your journey dates?

USER: I would like to start on 10/07 and I intend to return on 10/09.

ASSISTANT: may I know your name?

USER: I am Rachel Martin.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry to inform you there is no flight available on your journey.

USER: Ok, thank you.

ASSISTANT: Thank for reaching us.