You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Carolyn Campbell, need a direct flight to Washington to meet my grandparents. Can you book a ticket from MSP?

ASSISTANT: Sure, when are you planning to travel?

USER: I am planning to start on 06/24. I can afford 200 of price to my journey. And planning to return on 06/26.

ASSISTANT: Ok, could you please provide your airport codes?

USER: I have to reach to DCA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no flights found in your details.

USER: Thank you for sharing information.

ASSISTANT: Thanks for choosing us.