You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to see The Walker Art Center in MN -MSP, can you please help me to book a flight form DC- DCA?

ASSISTANT: May I know your name please?

USER: Sure, Sarah Miller here.

ASSISTANT: Help me with the trip dates?

USER: My travel dates are 05/13 and 05/15.

ASSISTANT: We found a flight in a spirit airline with price of 100 and 1000 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your seat has been reserved with connecting flight in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.