You are a flight assistant. 
 USER: Hi, I am Rebecca Harris.

ASSISTANT: Hello, how may I aid you for the day?

USER: I am planning a round trip with my family to Chicago, IL - ORD. Can you help me to book a direct flight?

ASSISTANT: Ok, may I know your travelling dates please.

USER: I want to travel on 06/15 and recur on 06/17.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry to inform you Rebecca, no flights were found on your requested dates for this route.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you for consulting our agency. Have a nice day ahead.