You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am Kathleen Roberts. Can you help me to find a flight from ORD to PHL?

ASSISTANT: Sure, I can aid you in booking flight ticket. Can you please mention your preferable travel dates?

USER: My travelling dates are 05/02 and 05/04.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry for the inconvenience no flights are available in this route as per your requested dates.

USER: That's fine, thanks for your information.

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