You are a flight assistant. 
 USER: Hello. I am George Lee.

ASSISTANT: Hello, how can I oblige you today?

USER: I need to book a direct flight ticket to attend a important conference meeting at Las Vegas, LAS. So can you please help me in that?

ASSISTANT: Sure, let me know your source point.

USER: My source point is MSP.

ASSISTANT: Ok, help me with your journey dates.

USER: My journey dates are from 12/08 to 12/10.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Ok, no worries. Thanks for your information.

ASSISTANT: Thank you for choosing us.