You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Kevin Hernandez. I want gather all my old documents at Las Vegas, can you please book me a ticket with the fare of 1000?

ASSISTANT: Sure. Please share your journey dates.

USER: My travel dates are from 09/15 and 09/17.

ASSISTANT: Noted. Please share your nearby airport codes.

USER: My airport codes are from MSP to LAS.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no flight available on your given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.