You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have a meeting to attend at Las Vegas, please help me in booking a ticket from MSP to LAS.

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 11/03 and 11/05.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to say, no flights were available on your route.

USER: Ok, thank you for your information.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Barbara Martin.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.