You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to book a ticket to attend a meeting at CLT. Can you please help me out to book a ticket from MSP?

ASSISTANT: Sure, please provide me your travelling dates.

USER: I would like to travel on Mar 16 and return back on Mar 18.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name for reservation?

USER: My name is Christopher Hernandez.

ASSISTANT: There are no flights available on your routes.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for choosing us.