You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Kenneth Clark. I want to book a ticket from MSP to EWR. Could you help me?

ASSISTANT: Sure, may I know your depart and return dates?

USER: My travelling dates are from 12/09 to 12/11.

ASSISTANT: May I know your price limit?

USER: My price limit is 500.

ASSISTANT: We found a Frontier airline, flight number: 1000, price: 200 with one connection.

USER: I need direct flight.

ASSISTANT: Sorry, no direct flights found with your given dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.