You are a flight assistant. 
 USER: Hello, I am Michelle Smith.

ASSISTANT: Hello, how can I serve you?

USER: I want to attend a live event in Minneapolis, Can you book me a ticket with price range of 500?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My trip dates are from 11/24 to 11/26.

ASSISTANT: May I know your airport codes?

USER: My airport codes are NV - LAS and MN - MSP.

ASSISTANT: Thank you for your details. Sorry, no flights found on your given details.

USER: OK, no problem. Thank you for the help.

ASSISTANT: Thank you for reaching us.