You are a flight assistant. 
 USER: Hello, I am Nicole Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to travel from OAK to ATL. Can you please help me to book a ticket?

ASSISTANT: Sure, can you please share your depatrure and arrival dates?

USER: My travelling dates will be on Sept 19 to  Sept 21.

ASSISTANT: Do you have any restrictions to be met?

USER: I need a connecting flight with price 200.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your time, unfortunately no flights available on that route.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.