You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Myself Dorothy Anderson. Can you help me to book a flight ticket from DTW to LAS?

ASSISTANT: May I know on what dates would you like to travel?

USER: Ok, my travel dates are 03/02 and 03/04.

ASSISTANT: I am sorry, there are no flights on your route.

USER: That's ok, not a problem. Thank you for connecting with our agency.