You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to make a reservation from MSP to LAS?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My journey dates are on Apr 26 and Apr 28.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: May I know your name to proceed further?

USER: My name is Cynthia Lee.

ASSISTANT:  Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for availing us.