You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Shirley Walker. I just need your help in booking a plane ticket to LAS from MSP.

ASSISTANT: May I know your trip dates?

USER: Preferably, from 06/28 to 06/30. I need 0 connected flight.

ASSISTANT: There is no direct flight with these location.

USER: No problem. Thank you.

ASSISTANT: Most welcome.