You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with booking a flight ticket from LAS to MSP?

ASSISTANT: May I know your desired travel dates please?

USER: My travel dates are Feb 22 and 24.

ASSISTANT: May I know your name please?

USER: My name is Christine Adams.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.