You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Hello, we are grateful to serve you. Sorry for inconvenience. My name is Paul Adams, I Would like to book a flight ticket.

ASSISTANT: OK, Paul Adams, we are here to help you. Can you please provide your journey details?

USER: I would like prefer to travel to Chicago IL - ORD from Charlotee NC - CLT. And my departure is on 11/01 return on 11/03.

ASSISTANT: OK, Thanks for your information. Please standby, I will check the availability of flight and get back to you.

USER: Sure.

ASSISTANT: Thanks for your patience. Sorry, we did not find any flight based on your details.

USER: OK, thank you.