You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I best serve you today?

USER: Please book a round trip ticket from Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Can you please share me your travelling dates?

USER: My travelling dates are from 12/20 to 12/22.

ASSISTANT: Do you need any price limit?

USER: Price limit 500.

ASSISTANT: There is an airline called Frontier of flight number 1016 with fare 100. Shall I reserve it?

USER: Please book a ticket with connections limit 1.

ASSISTANT: May I know your good name please?

USER: I am Charles Rodriguez.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks.

ASSISTANT: Thank you for choosing us.