You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Patricia Roberts.

ASSISTANT: How can I assist you now?

USER: Can you help me in booking a flight ticket from ORD to MSP?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: I want to travel on 07/05, and need to catch return flight on 07/07.

ASSISTANT: Do you have any preferences regarding timings of your journey?

USER: I want to depart at afternoon time.

ASSISTANT: Sorry Patricia Roberts, no flight is available to you on your dates.

USER: Ok, no issues. Thanks for the information.

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