You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Donna Jones here, can you please help me in booking the ticket from MSP to AUS?

ASSISTANT: Sure, please wait a moment.

USER: Sure, my travel dates are 03/19 and 03/21.

ASSISTANT: Sorry, there is no flights found on that.

USER: That's ok, I'll reach my destination by some other mode of transportation. Thank you for your service anyways.

ASSISTANT: Thank you, have a nice day.