You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to go to Minneapolis to celebrate my father birthday. Can you do the reservation?

ASSISTANT: Sure, can you share your journey dates?

USER: My travelling dates are 12/22 and 12/24.

ASSISTANT: Please provide me your airport codes.

USER: My airport codes are DCA-MSP.

ASSISTANT: May I know your name?

USER: Dennis Wilson here.

ASSISTANT: Do you have any specifications?

USER: Price should not cross 1000. I need break in my journey.

ASSISTANT: There is a connecting flight with number 1015 in airline Frontier, the fare is 100. Can I book it?

USER: Go ahead.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.