You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I need to travel to MSP to attend an private party, can you book me a flight?

ASSISTANT: Sure, can I have your name please?

USER: I am William Thompson.

ASSISTANT: Provide me your travel dates.

USER: I would like to travel on 10/12 to 10/14. Make sure that the price should not exceed 200.

ASSISTANT: May I know your origin?

USER: My journey starts at PHL.

ASSISTANT: We found a connecting flight with flight number 1020, price 100. Would you like me to book with Southwest airline?

USER: Sure, proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing our service.