You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Owing to an emergency, my business conference got postponed, so I want you to change my existing reservation.

ASSISTANT: May I know your name please?

USER: Sure, Barbara Lewis here.

ASSISTANT: There is a reservation on your name, please share your desired travel dates.

USER: Sure, I want to fly on Sep 12 and Sep 14.

ASSISTANT: May I know your preferred airport codes please?

USER: Sure, my boarding and landing points are from MSP to PHX.

ASSISTANT: May I know your name please?

USER: Already shared above.

ASSISTANT: Do you have any specifications?

USER: I prefer maximum one connection.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Yes, you can.

ASSISTANT: Your ticket is booked, flight number 1013 with Hawaiian Airlines.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.