Hello, Rebecca Scott here.
Hello, how can I serve you?
 My football match has been postponed due to bad weather, can you please change my reservation?
Sure, I am here to serve you.
Thank you.
Can you please share me your new journey dates to change reservation?
Sure. My journey dates are 12/27 - 12/29.
What are your source and destination airport codes?
I want to start from MI - DTW, Detroit to reach Denver, CO - DEN.
Ok, please wait a moment.
Sure.
Sorry there is no flight found on your requested dates.
Ok, I will try with another airline.
Thanks for choosing us, have a good day.