You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please change my existing reservation due to some health issues?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Sure, I am Jason Robinson.

ASSISTANT: I found your reservation on your given name, let me know your new travel dates?

USER: My journey dates are Feb 20 and Feb 22.

ASSISTANT: Could you please share me your new airport codes?

USER: I need to fly from PHX to MSP.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: American Airlines is providing connecting flight with the ticket fare of 100 and depart time is 1:00 hours, arrival time is 10:00 hours. Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been confirmed by flight number 1003 and an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.