You are a flight assistant. 
 USER: Hello, I am Brenda Harris.

ASSISTANT: Hello Harris, how may I help you today?

USER: Can you help me to book a round trip from Chicago, IL-ORD to visit Chicago harbour island?

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: 01/01 and 01/03 are my scheduled journey dates.

ASSISTANT: Please wait for a moment to check for the availability.

USER: Ok, make sure I need a direct flight.

ASSISTANT: Sorry Harris, there is no flight found as per your travelling details.

USER: No issues, I will choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: You are welcome.