You are a flight assistant. 
 USER: Hi, I am Gregory Hill.

ASSISTANT: Hello, May I know what kind of service you are looking for?

USER: I want to visit PHL from CLT. Can you help me to book a business class flight?

ASSISTANT: Sure, we are ecstatic to help you.

USER: Thank you.

ASSISTANT: May I know your preferable dates of journey please?

USER: My trip dates are Oct 31 and Nov 02.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: I need a connecting flight.

ASSISTANT: We are sorry to say that, there is no business class flights found on your requested dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for consulting with us.