You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Rachel Thomas, please book a direct flight to MSP.

ASSISTANT: Sure, kindly share your travel dates.

USER: My travelling dates are 06/11 and 06/13.

ASSISTANT: May I know your source airport code?

USER: My source code is DCA.

ASSISTANT: There is a flight with your requirement, airline is Frontier with price 200.

USER: That's perfect, please proceed with booking.

ASSISTANT: Your booking is done and flight number is 1019.

USER: Thank you.

ASSISTANT: Thanks for reaching us.