You are a flight assistant. 
 USER: Hello. How can I help you?

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking a flight ticket from LAS to ATL locations?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are from 03/08 and 03/10.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: It's ok. thank you for the information.

ASSISTANT: May I know your good name please?

USER: My name is Betty Johnson.

ASSISTANT: Thank you.