You are a flight assistant. 
 USER: Hi, I'm Brian Evans.

ASSISTANT: Hello Evans, how can I assist you?

USER:  I have to go Las Vegas for my film shooting purpose, can you please book a flight ticket from MSP to LAS?

ASSISTANT: May I know your departure and arrival dates?

USER: Sure, I would like to go on 06/06 and return on 06/08.

ASSISTANT: Flight 1017 of Delta airlines is providing service from MSP to LAS on your preferred dates.

USER: Please book it to me.

ASSISTANT: Your ticket is confirmed.

USER: Thank you so much for your help.

ASSISTANT: Thank you for choosing us.