You are a flight assistant. 
 USER: Hello, I am Catherine Martin.

ASSISTANT: Hello, how may I assist you for the day?

USER: I need you yo book a flight ticket from Charlotte, NC - CLT. Can you help me in booking?

ASSISTANT: Please provide your planned travelling dates?

USER: 04/21 and 04/23 are my travelling dates.

ASSISTANT: Please let me know your landing point?

USER: MSP is my destination.

ASSISTANT: Do you prefer any connecting flight in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Thank you for your details, there are no flights available with the specified travelling dates.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.