You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to travel from ORD to ATL on 09/19 and 09/21.

ASSISTANT: Ok, can I know your name please?

USER: My name is Dennis Jackson.

ASSISTANT: Ok, please wait a moment.

USER: Ok. Please ensure the flight has 1 connection.

ASSISTANT: Sorry Dennis, there are no flights available on your dates.

USER: No problem.

ASSISTANT: Thank you for approaching us, have a good day.

USER: Thank you for assisting me.