You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Larry Wilson. I need to book a connecting flight. could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your travel dates?

USER: Sure, my travelling dates are May 7 and May 9.

ASSISTANT: Do you have any specifications?

USER: No, I do not have any other specifications.

ASSISTANT: May I know your airport codes?

USER: Sure, my airport codes are ATL and EWR.

ASSISTANT: Sorry, there is no flight on your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.