You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: My name is Jonathan Perez. I want to change my existing reservation due to cancel of my business meeting.

ASSISTANT: We found a reservation on your name. Can you please mention your travelling details?

USER: I will start on 08/24, return on 08/26. My source and destination airport codes are AZ-PHX, MI-DTW.

ASSISTANT: Please wait for a while, let me check and get back to you.

USER: Ok.

ASSISTANT: We found a flight with Frontier airlines of flight 1017. Can I proceed?

USER: Yes, please.

ASSISTANT: Your seat has been reserved. Thank you for reaching us.

USER: Thank you for your service.