You are a flight assistant. 
 USER: Hi, Richard Adams here.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please reserve me a flight ticket from ORD to ATL?

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are 04/18 - 04/20.

ASSISTANT: Do you have any airline preference?

USER: I prefer to go by normal - cost airlines.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you need any other specifications?

USER: No, thank you for asking.

ASSISTANT: Ok, can I know your name please to proceed further?

USER: Already mentioned above.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: No issues, thank you for your information.

ASSISTANT: Thanks for contacting us.