You are a flight assistant. 
 USER: Hello, I am Nancy Williams.

ASSISTANT: Hello, how may I guide you?

USER: Can you please assist me in booking a flight ticket from NV-LAS to MN-MSP?

ASSISTANT: May I know your departure and arrival dates of your journey?

USER: My journey dates are from Apr 11 to Apr 13.

ASSISTANT: Please give me a moment to search for the flight.

USER: Sure.

ASSISTANT: Thank you for your information, there is no flight found on your travel dates to book the ticket.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: You are most welcome and thank you for reaching us.