You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I am William Thomas. Can you help me in booking on 04/16 to 04/18, as there is a project meeting?

ASSISTANT: Sure. Let me know from where you want to board.

USER: My source is EWR and destination is ATL.

ASSISTANT: Do you need lay by in between your journey?

USER: I need a connecting flight.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, there were no flights available with your requirements.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for reaching us.