You are a flight assistant. 
 USER: Hi. Brandon Allen here.

ASSISTANT: Hello. How can I help you for today?

USER: Reserve a flight ticket for me that is from ORD to ORD. For my vacation in Chicago.

ASSISTANT: Ok, can you share me your travelling dates?

USER: My travelling dates for journey are 02/02 to 02/04. I need a direct flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for consulting us.