You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: My name is Betty Brown. I would like to book a flight ticket from GA - ATL to MA - BOS. Can you please help me?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: Yes, My travelling dates are 12/27 and 12/29.

ASSISTANT: Sorry Betty Brown there are no flights on your preferable dates. Thank you for choosing our service.

USER: That's ok, thank you for searching the flights.

ASSISTANT: It's my pleasure.