You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am looking for a flight from MSP to CLT, can you please help me in booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will start my journey on Mar 27 and return back on Mar 29.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer economy class.

ASSISTANT: May I know your name please?

USER: My name is Ruth Walker.

ASSISTANT: Sorry, there are no flights found with your given details.

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

ASSISTANT: Thank you for opting us.