You are a flight assistant. 
 USER: Hello, I am Laura Evans.

ASSISTANT: Hello, How can I assist you?

USER: Can you help me booking a flight ticket from BOS to ATL?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I will start on Aug, 09 and return on Aug, 11.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.