You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: Help me in booking a flight from CLT to MSP?

ASSISTANT: Sure, when are you planning to make your trip?

USER: My travelling dates are Jan 01 to 03.

ASSISTANT: How many connections do you need?

USER: I prefer connection flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Margaret Mitchell.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: Proceed for booking.

ASSISTANT: Sorry Margaret Mitchell, there are no flights available for making reservation.

USER: That's ok, thank you.

ASSISTANT: Thank you for picking us.