You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: Please book a ticket from Los Angeles, CA-LAX to Atlanta, GA-ATL.

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are from 04/07 to 04/09.

ASSISTANT: May I Know your good name please?

USER: I am William Taylor.

ASSISTANT: Sorry, there is no flights found on your given dates.

USER: Thanks for the help.