You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I am Anna Campbell want to book a flight ticket from Chicago, IL-ORD to Atlanta, GA-ATL. So, can you help me with booking?

ASSISTANT: Ok. May I know your travelling dates?

USER: Yes, my travelling dates are 08/23 and 08/25.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for your details. There are no flights found on your data.

USER: That's ok. Thank you for the response.

ASSISTANT: Thank you.