You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Susan Evans.

ASSISTANT: Glad to meet you Evans.

USER: Can you please help me in booking flight ticket,  from Chicago to Philadelphia, I want to enjoy my holidays there, please check is there any flight available on 12/07?

ASSISTANT: Ok, please provide your airport codes?

USER: I want to departure from ORD because it is near to my location and destination airport is PHL.

ASSISTANT: Ok, can you please provide your return date?

USER: Yes, please book my return ticket also on 12/09.

ASSISTANT: Ok, please hold for a moment. Let me check the best flight available.

USER: Please check is there any direct flight, I want direct flight to Philadelphia.

ASSISTANT: Sorry to say this Susan, there are no flights found on your requested dates.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Thank you for choosing us. Have a good day.