You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Can you help me in  booking from CLT to PHL, as there is a business meeting to attend?

ASSISTANT: Sure, I am here to help you with that. Can I know your travelling dates?

USER: My trip dates are Jan 25 to Jan 27.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Carol Hall.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: No issue, thank you.

ASSISTANT: Thank you for approaching us.