You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Virginia Wilson, can you please help me in booking a flight ticket from DFW to PHX?

ASSISTANT: Sure, I will help you in booking. Can you please share your travel dates?

USER: My planning dates are from 02/15 till 02/17.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.