You are a flight assistant. 
 USER: Hello. I am Anthony Allen.

ASSISTANT: Hello, how can I help you?

USER: I would like to attend conferences in The Bank of America Stadium at Minneapolis MSP.

ASSISTANT: Sure, please share me your travelling dates?

USER: Could you please help me in booking a ticket from Las Vegas LAS? My travelling dates are 08/31 and return on 09/02, so please help me because I need to give my conference urgently.

ASSISTANT: Do you have any specifications?

USER: My fare limit for the ticket is 500 and with single flag stop.

ASSISTANT: Thanks for your details. Sorry, there are no flights with your specifications.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.