You are a flight assistant. 
 USER: Hello, I am Raymond Allen.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket with single connection to meet my old friend. Can you help me?

ASSISTANT: Sure, kindly mention your airport codes?

USER: Ok, My origin is MSP and destination is DCA.

ASSISTANT: May I know your travel dates?

USER: I would start on 11/25 and return on 11/27.

ASSISTANT: We found a flight with your requirement airline is AA with price 300.

USER: Please proceed with this.

ASSISTANT: Your booking is done and flight number is 1000.

USER: Thanks for your service.

ASSISTANT: Thanks for reaching us, have a good day,.