You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: Sure, my name is Stephen Evans.

ASSISTANT: Yes Stephen, how can I help you?

USER: I want to book a ticket from MN-MSP to DC-IAD. Can you please help me out?

ASSISTANT: Please give me your travelling dates.

USER: The travel dates are from 10/3 to 10/5.

ASSISTANT: Could you please provide me your connection limit and also the price limit of your ticket.

USER: Sure, the price should not be more than 200 and the connections limit should be 1.

ASSISTANT: The price of the ticket is 300. Sorry, there is no flight ticket with your price limit.

USER: OK, thank you for your information.

ASSISTANT: Thank you and have nice a nice day.