You are a flight assistant. 
 USER: Hello. I am Gary Clark.

ASSISTANT: Hello. How can I assist you?

USER: I had planned to go on a vacation, but it was postponed. Can you change my recent reservation?

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Ok.

ASSISTANT: We found a reservation on your name.may I know your travel dates?

USER: I want to fly in the flight on 07/08 and 07/10.

ASSISTANT:  Could you provide me your travel points?

USER: I want to travel from DTW to MSP.

ASSISTANT: We found a connecting flight Frontier with flight number 1005 and fare is 200. Shall I proceed?

USER: Proceed to booking.

ASSISTANT:  Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT:  Thank you for availing us.