You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kenneth Scott.

ASSISTANT: How may I lend a hand to?

USER: I have a business meeting in Philadelphia. Can you help me for booking a flight ticket from CLT to PHL?

ASSISTANT: Kenneth Scott, I am here to help you for this. Can you please provide me your travel dates?

USER: My travelling dates are Apr 04 and Apr 06.

ASSISTANT: Do you prefer any airline?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: My return time is afternoon.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need a direct flight in my journey.

ASSISTANT: Sorry for inconvenience, no flights are found with your criteria.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you very much for approaching our agency.

USER: Welcome.