You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Karen Evans. I would like to attend Heartland Pagan Festival in Phoenix, PHX. Can you please make  a reservation within the price of 200?

ASSISTANT: Sure, Please provide me your travel dates.

USER: My journey dates on 02/15 and 02/17.

ASSISTANT: Let me know your origin please.

USER: My origin point is Las Vegas, LAS.

ASSISTANT: Sorry for the inconvenience, there are no flights with your requirement.

USER: Ok, no issue.

ASSISTANT: Thank you.

USER: Thank you for your information.